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131331133321332 = 223716310211939361
BaseRepresentation
bin11101110111000111101001…
…100011001011000001110100
3122020000010121111012022222020
4131313013221203023001310
5114203212130112240312
61143152404552433140
736443234625225630
oct3567075143130164
9566003544168866
10131331133321332
1138934247a6754a
1212890a2a9a87b0
13583861b791049
1424606644c5dc0
15102b35686178c
hex7771e98cb074

131331133321332 has 96 divisors (see below), whose sum is σ = 352399805635584. Its totient is φ = 37289285452800.

The previous prime is 131331133321279. The next prime is 131331133321357. The reversal of 131331133321332 is 233123331133131.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 131331133321293 and 131331133321302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139339332 + ... + 140278692.

It is an arithmetic number, because the mean of its divisors is an integer number (3670831308704).

Almost surely, 2131331133321332 is an apocalyptic number.

131331133321332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131331133321332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176199902817792).

131331133321332 is an abundant number, since it is smaller than the sum of its proper divisors (221068672314252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131331133321332 is a wasteful number, since it uses less digits than its factorization.

131331133321332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949749 (or 949747 counting only the distinct ones).

The product of its digits is 26244, while the sum is 33.

Adding to 131331133321332 its reverse (233123331133131), we get a palindrome (364454464454463).

The spelling of 131331133321332 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, one hundred thirty-three million, three hundred twenty-one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 163 326 489 652 978 1141 1956 2282 3423 4564 6846 10211 13692 20422 30633 40844 61266 71477 122532 142954 214431 285908 428862 857724 939361 1664393 1878722 2818083 3328786 3757444 4993179 5636166 6575527 6657572 9986358 11272332 11650751 13151054 19726581 19972716 23301502 26302108 34952253 39453162 46603004 69904506 78906324 139809012 153115843 306231686 459347529 612463372 918695058 1071810901 1837390116 2143621802 3215432703 4287243604 6430865406 9591815171 12861730812 19183630342 28775445513 38367260684 57550891026 67142706197 115101782052 134285412394 201428118591 268570824788 402856237182 805712474364 1563465872873 3126931745746 4690397618619 6253863491492 9380795237238 10944261110111 18761590474476 21888522220222 32832783330333 43777044440444 65665566660666 131331133321332