20312302132 has 6 divisors (see below), whose sum is σ = 35546528738. Its totient is φ = 10156151064.

The previous prime is 20312302111. The next prime is 20312302139. The reversal of 20312302132 is 23120321302.

It can be written as a sum of positive squares in only one way, i.e., 13013333776 + 7298968356 = 114076^2 + 85434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312302139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539037763 + ... + 2539037770.

Almost surely, 2^20312302132 is an apocalyptic number.

It is an amenable number.

20312302132 is a deficient number, since it is larger than the sum of its proper divisors (15234226606).

20312302132 is a wasteful number, since it uses less digits than its factorization.

20312302132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078075537 (or 5078075535 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20312302132 its reverse (23120321302), we get a palindrome (43432623434).

The spelling of 20312302132 in words is "twenty billion, three hundred twelve million, three hundred two thousand, one hundred thirty-two".