100431365500 has 48 divisors (see below), whose sum is σ = 224691955488. Its totient is φ = 39192720000.

The previous prime is 100431365471. The next prime is 100431365581. The reversal of 100431365500 is 5563134001.

It is a congruent number.

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, 2429046 + ... + 2470045.

It is an arithmetic number, because the mean of its divisors is an integer number (4681082406).

Almost surely, 2^100431365500 is an apocalyptic number.

100431365500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100431365500 is an abundant number, since it is smaller than the sum of its proper divisors (124260589988).

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

100431365500 is a wasteful number, since it uses less digits than its factorization.

100431365500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899151 (or 4899139 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 100431365500 its reverse (5563134001), we get a palindrome (105994499501).

The spelling of 100431365500 in words is "one hundred billion, four hundred thirty-one million, three hundred sixty-five thousand, five hundred".