31013313222 has 16 divisors (see below), whose sum is σ = 62051798592. Its totient is φ = 10333575720.

The previous prime is 31013313203. The next prime is 31013313257. The reversal of 31013313222 is 22231331013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032804 + ... + 1062407.

It is an arithmetic number, because the mean of its divisors is an integer number (3878237412).

Almost surely, 2^31013313222 is an apocalyptic number.

31013313222 is an abundant number, since it is smaller than the sum of its proper divisors (31038485370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31013313222 is a wasteful number, since it uses less digits than its factorization.

31013313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097683.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31013313222 its reverse (22231331013), we get a palindrome (53244644235).

The spelling of 31013313222 in words is "thirty-one billion, thirteen million, three hundred thirteen thousand, two hundred twenty-two".