231386612103 has 24 divisors (see below), whose sum is σ = 347603297600. Its totient is φ = 148188740544.

The previous prime is 231386612099. The next prime is 231386612137. The reversal of 231386612103 is 301216683132.

231386612103 is a `hidden beast` number, since 2 + 3 + 1 + 38 + 6 + 612 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 231386612103 - 2² = 231386612099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231386612183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4371508 + ... + 4424121.

Almost surely, 2^231386612103 is an apocalyptic number.

231386612103 is a deficient number, since it is larger than the sum of its proper divisors (116216685497).

231386612103 is a wasteful number, since it uses less digits than its factorization.

231386612103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795751 (or 8795748 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 231386612103 in words is "two hundred thirty-one billion, three hundred eighty-six million, six hundred twelve thousand, one hundred three".