31311321101132 has 12 divisors (see below), whose sum is σ = 54989811259656. Its totient is φ = 15599946455520.

The previous prime is 31311321101129. The next prime is 31311321101149. The reversal of 31311321101132 is 23110112311313.

It is a junction number, because it is equal to n+sod(n) for n = 31311321101098 and 31311321101107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13928522498 + ... + 13928524745.

It is an arithmetic number, because the mean of its divisors is an integer number (4582484271638).

Almost surely, 2^{31311321101132} is an apocalyptic number.

It is an amenable number.

31311321101132 is a deficient number, since it is larger than the sum of its proper divisors (23678490158524).

31311321101132 is a wasteful number, since it uses less digits than its factorization.

31311321101132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27857047528 (or 27857047526 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 31311321101132 its reverse (23110112311313), we get a palindrome (54421433412445).

The spelling of 31311321101132 in words is "thirty-one trillion, three hundred eleven billion, three hundred twenty-one million, one hundred one thousand, one hundred thirty-two".