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231012131021310 = 2357700404367377
BaseRepresentation
bin110100100001101010110100…
…000000100010000111111110
31010021221112200121101222100010
4310201222310000202013332
5220234400321020140220
62135153301413044050
766442034650523112
oct6441526400420776
91107845617358303
10231012131021310
1167675770540141
1221aab847326626
139bb9473013a82
1441090925bd742
151ba92505d11e0
hexd21ab40221fe

231012131021310 has 16 divisors (see below), whose sum is σ = 554429114451216. Its totient is φ = 61603234939008.

The previous prime is 231012131021281. The next prime is 231012131021389. The reversal of 231012131021310 is 13120131210132.

It is a super-2 number, since 2×2310121310213102 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3850202183659 + ... + 3850202183718.

It is an arithmetic number, because the mean of its divisors is an integer number (34651819653201).

Almost surely, 2231012131021310 is an apocalyptic number.

231012131021310 is an abundant number, since it is smaller than the sum of its proper divisors (323416983429906).

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

231012131021310 is a wasteful number, since it uses less digits than its factorization.

231012131021310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700404367387.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 231012131021310 its reverse (13120131210132), we get a palindrome (244132262231442).

The spelling of 231012131021310 in words is "two hundred thirty-one trillion, twelve billion, one hundred thirty-one million, twenty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 7700404367377 15400808734754 23101213102131 38502021836885 46202426204262 77004043673770 115506065510655 231012131021310