31113232032213 has 16 divisors (see below), whose sum is σ = 46130581600000. Its totient is φ = 20725547656320.

The previous prime is 31113232032167. The next prime is 31113232032287. The reversal of 31113232032213 is 31223023231113.

31113232032213 is a `hidden beast` number, since 3 + 1 + 1 + 1 + 3 + 2 + 320 + 322 + 13 = 666.

It is not a de Polignac number, because 31113232032213 - 2¹⁴ = 31113232015829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113232030213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461272093 + ... + 461339538.

It is an arithmetic number, because the mean of its divisors is an integer number (2883161350000).

Almost surely, 2^{31113232032213} is an apocalyptic number.

It is an amenable number.

31113232032213 is a deficient number, since it is larger than the sum of its proper divisors (15017349567787).

31113232032213 is a wasteful number, since it uses less digits than its factorization.

31113232032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922612889 (or 922612883 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31113232032213 its reverse (31223023231113), we get a palindrome (62336255263326).

The spelling of 31113232032213 in words is "thirty-one trillion, one hundred thirteen billion, two hundred thirty-two million, thirty-two thousand, two hundred thirteen".