20431877304 has 16 divisors (see below), whose sum is σ = 51079693320. Its totient is φ = 6810625760.

The previous prime is 20431877303. The next prime is 20431877309. The reversal of 20431877304 is 40377813402.

It is a super-2 number, since 2×20431877304² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431877303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425664087 + ... + 425664134.

Almost surely, 2^20431877304 is an apocalyptic number.

20431877304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20431877304 is an abundant number, since it is smaller than the sum of its proper divisors (30647816016).

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

20431877304 is a wasteful number, since it uses less digits than its factorization.

20431877304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851328230 (or 851328226 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 20431877304 in words is "twenty billion, four hundred thirty-one million, eight hundred seventy-seven thousand, three hundred four".