31321100013132 has 48 divisors (see below), whose sum is σ = 74786829700352. Its totient is φ = 10196930842560.

The previous prime is 31321100013061. The next prime is 31321100013157. The reversal of 31321100013132 is 23131000112313.

It is a happy number.

It is a super-2 number, since 2×31321100013132² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31321100013099 and 31321100013108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6414282 + ... + 10187502.

Almost surely, 2^{31321100013132} is an apocalyptic number.

It is an amenable number.

31321100013132 is an abundant number, since it is smaller than the sum of its proper divisors (43465729687220).

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

31321100013132 is a wasteful number, since it uses less digits than its factorization.

31321100013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789358 (or 3789356 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31321100013132 its reverse (23131000112313), we get a palindrome (54452100125445).

The spelling of 31321100013132 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred million, thirteen thousand, one hundred thirty-two".