20312102232 has 48 divisors (see below), whose sum is σ = 56498760240. Its totient is φ = 6587707968.

The previous prime is 20312102219. The next prime is 20312102267. The reversal of 20312102232 is 23220121302.

20312102232 is a `hidden beast` number, since 20 + 312 + 102 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3809668 + ... + 3814995.

It is an arithmetic number, because the mean of its divisors is an integer number (1177057505).

Almost surely, 2^20312102232 is an apocalyptic number.

It is an amenable number.

20312102232 is an abundant number, since it is smaller than the sum of its proper divisors (36186658008).

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

20312102232 is a wasteful number, since it uses less digits than its factorization.

20312102232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624712 (or 7624705 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20312102232 its reverse (23220121302), we get a palindrome (43532223534).

The spelling of 20312102232 in words is "twenty billion, three hundred twelve million, one hundred two thousand, two hundred thirty-two".