20032431100 has 72 divisors (see below), whose sum is σ = 50211817488. Its totient is φ = 6856012800.

The previous prime is 20032431079. The next prime is 20032431119. The reversal of 20032431100 is 113423002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 516927 + ... + 554326.

It is an arithmetic number, because the mean of its divisors is an integer number (697386354).

Almost surely, 2^20032431100 is an apocalyptic number.

20032431100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032431100 is an abundant number, since it is smaller than the sum of its proper divisors (30179386388).

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

20032431100 is a wasteful number, since it uses less digits than its factorization.

20032431100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071295 (or 1071288 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20032431100 its reverse (113423002), we get a palindrome (20145854102).

The spelling of 20032431100 in words is "twenty billion, thirty-two million, four hundred thirty-one thousand, one hundred".