31312410122 has 12 divisors (see below), whose sum is σ = 54636960690. Its totient is φ = 13419604296.

The previous prime is 31312410119. The next prime is 31312410127. The reversal of 31312410122 is 22101421313.

It can be written as a sum of positive squares in only one way, i.e., 30129669241 + 1182740881 = 173579^2 + 34391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31312410094 and 31312410103.

It is not an unprimeable number, because it can be changed into a prime (31312410127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159757097 + ... + 159757292.

Almost surely, 2^31312410122 is an apocalyptic number.

31312410122 is a deficient number, since it is larger than the sum of its proper divisors (23324550568).

31312410122 is a wasteful number, since it uses less digits than its factorization.

31312410122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319514405 (or 319514398 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31312410122 its reverse (22101421313), we get a palindrome (53413831435).

The spelling of 31312410122 in words is "thirty-one billion, three hundred twelve million, four hundred ten thousand, one hundred twenty-two".