31213200231213 has 128 divisors (see below), whose sum is σ = 57641256529920. Its totient is φ = 14498680043520.

The previous prime is 31213200231193. The next prime is 31213200231217.

31213200231213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31213200231213 - 2¹⁸ = 31213199969069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213200231217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24603433 + ... + 25840961.

It is an arithmetic number, because the mean of its divisors is an integer number (450322316640).

Almost surely, 2^{31213200231213} is an apocalyptic number.

31213200231213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31213200231213 is a deficient number, since it is larger than the sum of its proper divisors (26428056298707).

31213200231213 is a wasteful number, since it uses less digits than its factorization.

31213200231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237827.

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

It can be divided in two parts, 31213200 and 231213, that added together give a palindrome (31444413).

The spelling of 31213200231213 in words is "thirty-one trillion, two hundred thirteen billion, two hundred million, two hundred thirty-one thousand, two hundred thirteen".