20204131996 has 12 divisors (see below), whose sum is σ = 35359609320. Its totient is φ = 10101386480.

The previous prime is 20204131993. The next prime is 20204132027. The reversal of 20204131996 is 69913140202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204131993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99766 + ... + 224413.

It is an arithmetic number, because the mean of its divisors is an integer number (2946634110).

Almost surely, 2^20204131996 is an apocalyptic number.

It is an amenable number.

20204131996 is a deficient number, since it is larger than the sum of its proper divisors (15155477324).

20204131996 is a wasteful number, since it uses less digits than its factorization.

20204131996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339764 (or 339762 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 20204131996 in words is "twenty billion, two hundred four million, one hundred thirty-one thousand, nine hundred ninety-six".