23431525320105 has 32 divisors (see below), whose sum is σ = 47606908588800. Its totient is φ = 10711554431616.

The previous prime is 23431525320089. The next prime is 23431525320139. The reversal of 23431525320105 is 50102352513432.

23431525320105 is a `hidden beast` number, since 2 + 3 + 4 + 3 + 1 + 525 + 3 + 20 + 105 = 666.

It is not a de Polignac number, because 23431525320105 - 2⁴ = 23431525320089 is a prime.

It is a super-2 number, since 2×23431525320105² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23431525320105.

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, 12397631500 + ... + 12397633389.

It is an arithmetic number, because the mean of its divisors is an integer number (1487715893400).

Almost surely, 2^{23431525320105} is an apocalyptic number.

It is an amenable number.

23431525320105 is an abundant number, since it is smaller than the sum of its proper divisors (24175383268695).

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

23431525320105 is a wasteful number, since it uses less digits than its factorization.

23431525320105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24795264910 (or 24795264904 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 23431525320105 its reverse (50102352513432), we get a palindrome (73533877833537).

The spelling of 23431525320105 in words is "twenty-three trillion, four hundred thirty-one billion, five hundred twenty-five million, three hundred twenty thousand, one hundred five".