31213312232001 has 32 divisors (see below), whose sum is σ = 41993410867200. Its totient is φ = 20621428644096.

The previous prime is 31213312231991. The next prime is 31213312232083. The reversal of 31213312232001 is 10023221331213.

It is not a de Polignac number, because 31213312232001 - 2²⁷ = 31213178014273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31213312233001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2569202275 + ... + 2569214423.

It is an arithmetic number, because the mean of its divisors is an integer number (1312294089600).

Almost surely, 2^{31213312232001} is an apocalyptic number.

It is an amenable number.

31213312232001 is a deficient number, since it is larger than the sum of its proper divisors (10780098635199).

31213312232001 is a wasteful number, since it uses less digits than its factorization.

31213312232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19433.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31213312232001 its reverse (10023221331213), we get a palindrome (41236533563214).

The spelling of 31213312232001 in words is "thirty-one trillion, two hundred thirteen billion, three hundred twelve million, two hundred thirty-two thousand, one".