231057105919 has 16 divisors (see below), whose sum is σ = 241413606720. Its totient is φ = 220861105920.

The previous prime is 231057105887. The next prime is 231057105941. The reversal of 231057105919 is 919501750132.

It is a cyclic number.

It is not a de Polignac number, because 231057105919 - 2⁵ = 231057105887 is a prime.

It is a super-2 number, since 2×231057105919² (a number of 24 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 (231057105319) 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 15 ways as a sum of consecutive naturals, for example, 13196779 + ... + 13214275.

It is an arithmetic number, because the mean of its divisors is an integer number (15088350420).

Almost surely, 2^231057105919 is an apocalyptic number.

231057105919 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

231057105919 is a deficient number, since it is larger than the sum of its proper divisors (10356500801).

231057105919 is a wasteful number, since it uses less digits than its factorization.

231057105919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22050.

The product of its (nonzero) digits is 85050, while the sum is 43.

The spelling of 231057105919 in words is "two hundred thirty-one billion, fifty-seven million, one hundred five thousand, nine hundred nineteen".