23131405510212 has 48 divisors (see below), whose sum is σ = 54257719606272. Its totient is φ = 7669836971520.

The previous prime is 23131405510181. The next prime is 23131405510237. The reversal of 23131405510212 is 21201550413132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23131405510212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73675548 + ... + 73988844.

It is an arithmetic number, because the mean of its divisors is an integer number (1130369158464).

Almost surely, 2^{23131405510212} is an apocalyptic number.

It is an amenable number.

23131405510212 is an abundant number, since it is smaller than the sum of its proper divisors (31126314096060).

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

23131405510212 is a wasteful number, since it uses less digits than its factorization.

23131405510212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345708 (or 345706 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 23131405510212 its reverse (21201550413132), we get a palindrome (44332955923344).

The spelling of 23131405510212 in words is "twenty-three trillion, one hundred thirty-one billion, four hundred five million, five hundred ten thousand, two hundred twelve".