31321132032132 has 60 divisors (see below), whose sum is σ = 81891667596816. Its totient is φ = 10438841936880.

The previous prime is 31321132032101. The next prime is 31321132032133. The reversal of 31321132032132 is 23123023112313.

31321132032132 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 11 + 320 + 321 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31321132032096 and 31321132032105.

It is not an unprimeable number, because it can be changed into a prime (31321132032133) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4900794 + ... + 9309137.

Almost surely, 2^{31321132032132} is an apocalyptic number.

It is an amenable number.

31321132032132 is an abundant number, since it is smaller than the sum of its proper divisors (50570535564684).

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

31321132032132 is a wasteful number, since it uses less digits than its factorization.

31321132032132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14216750 (or 14216739 counting only the distinct ones).

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

Adding to 31321132032132 its reverse (23123023112313), we get a palindrome (54444155144445).

The spelling of 31321132032132 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred thirty-two million, thirty-two thousand, one hundred thirty-two".