31232312200012 has 24 divisors (see below), whose sum is σ = 68143226618880. Its totient is φ = 12168433324560.

The previous prime is 31232312199989. The next prime is 31232312200093. The reversal of 31232312200012 is 21000221323213.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 50701805212 + ... + 50701805827.

It is an arithmetic number, because the mean of its divisors is an integer number (2839301109120).

Almost surely, 2^{31232312200012} is an apocalyptic number.

It is an amenable number.

31232312200012 is an abundant number, since it is smaller than the sum of its proper divisors (36910914418868).

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

31232312200012 is a wasteful number, since it uses less digits than its factorization.

31232312200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101403611061 (or 101403611059 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31232312200012 its reverse (21000221323213), we get a palindrome (52232533523225).

The spelling of 31232312200012 in words is "thirty-one trillion, two hundred thirty-two billion, three hundred twelve million, two hundred thousand, twelve".