31302011122 has 16 divisors (see below), whose sum is σ = 47174545080. Its totient is φ = 15577325568.

The previous prime is 31302011077. The next prime is 31302011171. The reversal of 31302011122 is 22111020313.

It can be written as a sum of positive squares in 4 ways, for example, as 30499478881 + 802532241 = 174641^2 + 28329^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31302011096 and 31302011105.

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, 348654 + ... + 429142.

Almost surely, 2^31302011122 is an apocalyptic number.

31302011122 is a deficient number, since it is larger than the sum of its proper divisors (15872533958).

31302011122 is a wasteful number, since it uses less digits than its factorization.

31302011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81405.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31302011122 its reverse (22111020313), we get a palindrome (53413031435).

The spelling of 31302011122 in words is "thirty-one billion, three hundred two million, eleven thousand, one hundred twenty-two".