20312104204 has 48 divisors (see below), whose sum is σ = 42782387200. Its totient is φ = 8243150976.

The previous prime is 20312104199. The next prime is 20312104213. The reversal of 20312104204 is 40240121302.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1307917 + ... + 1323355.

Almost surely, 2^20312104204 is an apocalyptic number.

It is an amenable number.

20312104204 is an abundant number, since it is smaller than the sum of its proper divisors (22470282996).

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

20312104204 is a wasteful number, since it uses less digits than its factorization.

20312104204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942 (or 17940 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20312104204 its reverse (40240121302), we get a palindrome (60552225506).

The spelling of 20312104204 in words is "twenty billion, three hundred twelve million, one hundred four thousand, two hundred four".