31321011313132 has 12 divisors (see below), whose sum is σ = 54811835270136. Its totient is φ = 15660486950240.

The previous prime is 31321011313127. The next prime is 31321011313147. The reversal of 31321011313132 is 23131311012313.

It is a junction number, because it is equal to n+sod(n) for n = 31321011313097 and 31321011313106.

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, 493558 + ... + 7930045.

It is an arithmetic number, because the mean of its divisors is an integer number (4567652939178).

Almost surely, 2^{31321011313132} is an apocalyptic number.

It is an amenable number.

31321011313132 is a deficient number, since it is larger than the sum of its proper divisors (23490823957004).

31321011313132 is a wasteful number, since it uses less digits than its factorization.

31321011313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9353168 (or 9353166 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31321011313132 its reverse (23131311012313), we get a palindrome (54452322325445).

The spelling of 31321011313132 in words is "thirty-one trillion, three hundred twenty-one billion, eleven million, three hundred thirteen thousand, one hundred thirty-two".