20132431100 has 36 divisors (see below), whose sum is σ = 44240397600. Its totient is φ = 7951032960.

The previous prime is 20132431097. The next prime is 20132431133. The reversal of 20132431100 is 113423102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1266305 + ... + 1282104.

Almost surely, 2^20132431100 is an apocalyptic number.

20132431100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132431100 is an abundant number, since it is smaller than the sum of its proper divisors (24107966500).

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

20132431100 is a wasteful number, since it uses less digits than its factorization.

20132431100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548502 (or 2548495 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20132431100 its reverse (113423102), we get a palindrome (20245854202).

The spelling of 20132431100 in words is "twenty billion, one hundred thirty-two million, four hundred thirty-one thousand, one hundred".