20312011132 has 24 divisors (see below), whose sum is σ = 40726372064. Its totient is φ = 8683215552.

The previous prime is 20312011079. The next prime is 20312011141. The reversal of 20312011132 is 23111021302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902523 + ... + 924754.

Almost surely, 2^20312011132 is an apocalyptic number.

It is an amenable number.

20312011132 is an abundant number, since it is smaller than the sum of its proper divisors (20414360932).

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

20312011132 is a wasteful number, since it uses less digits than its factorization.

20312011132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827685 (or 1827683 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20312011132 its reverse (23111021302), we get a palindrome (43423032434).

The spelling of 20312011132 in words is "twenty billion, three hundred twelve million, eleven thousand, one hundred thirty-two".