100100112203231 has 40 divisors (see below), whose sum is σ = 118691124633600. Its totient is φ = 84401377809840.

The previous prime is 100100112203191. The next prime is 100100112203249. The reversal of 100100112203231 is 132302211001001.

It is a de Polignac number, because none of the positive numbers 2^k-100100112203231 is a prime.

It is a super-2 number, since 2×100100112203231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100112206231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50429330 + ... + 52376688.

It is an arithmetic number, because the mean of its divisors is an integer number (2967278115840).

Almost surely, 2^{100100112203231} is an apocalyptic number.

100100112203231 is a deficient number, since it is larger than the sum of its proper divisors (18591012430369).

100100112203231 is an frugal number, since it uses more digits than its factorization.

100100112203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947737 (or 1947716 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100100112203231 its reverse (132302211001001), we get a palindrome (232402323204232).

The spelling of 100100112203231 in words is "one hundred trillion, one hundred billion, one hundred twelve million, two hundred three thousand, two hundred thirty-one".