31313000021122 has 16 divisors (see below), whose sum is σ = 48819418257600. Its totient is φ = 15044977941840.

The previous prime is 31313000021119. The next prime is 31313000021183. The reversal of 31313000021122 is 22112000031313.

It is a super-2 number, since 2×31313000021122² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31313000021122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279322622 + ... + 1279347097.

It is an arithmetic number, because the mean of its divisors is an integer number (3051213641100).

Almost surely, 2^{31313000021122} is an apocalyptic number.

31313000021122 is a deficient number, since it is larger than the sum of its proper divisors (17506418236478).

31313000021122 is a wasteful number, since it uses less digits than its factorization.

31313000021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558669961.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31313000021122 its reverse (22112000031313), we get a palindrome (53425000052435).

The spelling of 31313000021122 in words is "thirty-one trillion, three hundred thirteen billion, twenty-one thousand, one hundred twenty-two".