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131211234114420 = 22353759104159511
BaseRepresentation
bin11101110101010111111110…
…111111111111101101110100
3122012120200010111200112121010
4131311113332333333231310
5114144231101413130140
61143021335300352220
736431461461620625
oct3565277677775564
9565520114615533
10131211234114420
113889840aa957a9
12128717489a5670
13582a221437475
14245892c6d9a4c
15102818a66a880
hex7755fefffb74

131211234114420 has 48 divisors (see below), whose sum is σ = 377320954324608. Its totient is φ = 34043995877760.

The previous prime is 131211234114283. The next prime is 131211234114421. The reversal of 131211234114420 is 24411432112131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211234114421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29552077536 + ... + 29552081975.

It is an arithmetic number, because the mean of its divisors is an integer number (7860853215096).

Almost surely, 2131211234114420 is an apocalyptic number.

131211234114420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131211234114420 is an abundant number, since it is smaller than the sum of its proper divisors (246109720210188).

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

131211234114420 is a wasteful number, since it uses less digits than its factorization.

131211234114420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59104159560 (or 59104159558 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 131211234114420 its reverse (24411432112131), we get a palindrome (155622666226551).

The spelling of 131211234114420 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred thirty-four million, one hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 59104159511 118208319022 177312478533 236416638044 295520797555 354624957066 591041595110 709249914132 886562392665 1182083190220 1773124785330 2186853901907 3546249570660 4373707803814 6560561705721 8747415607628 10934269509535 13121123411442 21868539019070 26242246822884 32802808528605 43737078038140 65605617057210 131211234114420