31120320313222 has 64 divisors (see below), whose sum is σ = 53801556480000. Its totient is φ = 13224429608832.

The previous prime is 31120320313207. The next prime is 31120320313231. The reversal of 31120320313222 is 22231302302113.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8196026628 + ... + 8196030424.

It is an arithmetic number, because the mean of its divisors is an integer number (840649320000).

Almost surely, 2^{31120320313222} is an apocalyptic number.

31120320313222 is a deficient number, since it is larger than the sum of its proper divisors (22681236166778).

31120320313222 is a wasteful number, since it uses less digits than its factorization.

31120320313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31120320313222 its reverse (22231302302113), we get a palindrome (53351622615335).

The spelling of 31120320313222 in words is "thirty-one trillion, one hundred twenty billion, three hundred twenty million, three hundred thirteen thousand, two hundred twenty-two".