31332120111213 has 16 divisors (see below), whose sum is σ = 42974149881600. Its totient is φ = 20293348517120.

The previous prime is 31332120111191. The next prime is 31332120111233. The reversal of 31332120111213 is 31211102123313.

It is a cyclic number.

It is not a de Polignac number, because 31332120111213 - 2¹² = 31332120107117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332120111233) 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, 532884168 + ... + 532942961.

It is an arithmetic number, because the mean of its divisors is an integer number (2685884367600).

Almost surely, 2^{31332120111213} is an apocalyptic number.

It is an amenable number.

31332120111213 is a deficient number, since it is larger than the sum of its proper divisors (11642029770387).

31332120111213 is a wasteful number, since it uses less digits than its factorization.

31332120111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065827412.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 31332120111213 its reverse (31211102123313), we get a palindrome (62543222234526).

The spelling of 31332120111213 in words is "thirty-one trillion, three hundred thirty-two billion, one hundred twenty million, one hundred eleven thousand, two hundred thirteen".