31023312313122 has 12 divisors (see below), whose sum is σ = 67217176678470. Its totient is φ = 10341104104368.

The previous prime is 31023312313121. The next prime is 31023312313129. The reversal of 31023312313122 is 22131321332013.

31023312313122 is a `hidden beast` number, since 3 + 1 + 0 + 2 + 3 + 312 + 31 + 312 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18250829865801 + 12772482447321 = 4272099^2 + 3573861^2 .

It is not an unprimeable number, because it can be changed into a prime (31023312313121) 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, 861758675347 + ... + 861758675382.

Almost surely, 2^{31023312313122} is an apocalyptic number.

31023312313122 is an abundant number, since it is smaller than the sum of its proper divisors (36193864365348).

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

31023312313122 is a wasteful number, since it uses less digits than its factorization.

31023312313122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723517350737 (or 1723517350734 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31023312313122 its reverse (22131321332013), we get a palindrome (53154633645135).

The spelling of 31023312313122 in words is "thirty-one trillion, twenty-three billion, three hundred twelve million, three hundred thirteen thousand, one hundred twenty-two".