20104220431232 has 64 divisors (see below), whose sum is σ = 45814278261600. Its totient is φ = 8608324798464.

The previous prime is 20104220431213. The next prime is 20104220431319. The reversal of 20104220431232 is 23213402240102.

It is a tau number, because it is divible by the number of its divisors (64).

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, 9122543 + ... + 11109870.

Almost surely, 2^{20104220431232} is an apocalyptic number.

It is an amenable number.

20104220431232 is an abundant number, since it is smaller than the sum of its proper divisors (25710057830368).

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

20104220431232 is a wasteful number, since it uses less digits than its factorization.

20104220431232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20233543 (or 20233531 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20104220431232 its reverse (23213402240102), we get a palindrome (43317622671334).

The spelling of 20104220431232 in words is "twenty trillion, one hundred four billion, two hundred twenty million, four hundred thirty-one thousand, two hundred thirty-two".