20012320132 has 24 divisors (see below), whose sum is σ = 40531285760. Its totient is φ = 8468141760.

The previous prime is 20012320127. The next prime is 20012320147. The reversal of 20012320132 is 23102321002.

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, 4521369 + ... + 4525792.

Almost surely, 2^20012320132 is an apocalyptic number.

It is an amenable number.

20012320132 is an abundant number, since it is smaller than the sum of its proper divisors (20518965628).

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

20012320132 is a wasteful number, since it uses less digits than its factorization.

20012320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9047251 (or 9047249 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012320132 its reverse (23102321002), we get a palindrome (43114641134).

The spelling of 20012320132 in words is "twenty billion, twelve million, three hundred twenty thousand, one hundred thirty-two".