100203131231 has 16 divisors (see below), whose sum is σ = 115833856320. Its totient is φ = 84901893120.

The previous prime is 100203131219. The next prime is 100203131257. The reversal of 100203131231 is 132131302001.

It is a cyclic number.

It is not a de Polignac number, because 100203131231 - 2⁶ = 100203131167 is a prime.

It is a super-2 number, since 2×100203131231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203131291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2748635 + ... + 2784851.

It is an arithmetic number, because the mean of its divisors is an integer number (7239616020).

Almost surely, 2^100203131231 is an apocalyptic number.

100203131231 is a deficient number, since it is larger than the sum of its proper divisors (15630725089).

100203131231 is an equidigital number, since it uses as much as digits as its factorization.

100203131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40754.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100203131231 its reverse (132131302001), we get a palindrome (232334433232).

The spelling of 100203131231 in words is "one hundred billion, two hundred three million, one hundred thirty-one thousand, two hundred thirty-one".