31032213113 has 16 divisors (see below), whose sum is σ = 34205276160. Its totient is φ = 27918992400.

The previous prime is 31032213109. The next prime is 31032213133. The reversal of 31032213113 is 31131223013.

It is a cyclic number.

It is not a de Polignac number, because 31032213113 - 2² = 31032213109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31032213133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499508 + ... + 558186.

It is an arithmetic number, because the mean of its divisors is an integer number (2137829760).

Almost surely, 2^31032213113 is an apocalyptic number.

It is an amenable number.

31032213113 is a deficient number, since it is larger than the sum of its proper divisors (3173063047).

31032213113 is a wasteful number, since it uses less digits than its factorization.

31032213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59188.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31032213113 its reverse (31131223013), we get a palindrome (62163436126).

The spelling of 31032213113 in words is "thirty-one billion, thirty-two million, two hundred thirteen thousand, one hundred thirteen".