23311313131400 has 96 divisors (see below), whose sum is σ = 61944278437440. Its totient is φ = 7992090312960.

The previous prime is 23311313131399. The next prime is 23311313131427. The reversal of 23311313131400 is 413131311332.

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 23311313131400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31706354 + ... + 32433246.

It is an arithmetic number, because the mean of its divisors is an integer number (645252900390).

Almost surely, 2^{23311313131400} is an apocalyptic number.

23311313131400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311313131400 is an abundant number, since it is smaller than the sum of its proper divisors (38632965306040).

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

23311313131400 is a wasteful number, since it uses less digits than its factorization.

23311313131400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749823 (or 749814 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 23311313131400 its reverse (413131311332), we get a palindrome (23724444442732).

The spelling of 23311313131400 in words is "twenty-three trillion, three hundred eleven billion, three hundred thirteen million, one hundred thirty-one thousand, four hundred".