231307105 has 24 divisors (see below), whose sum is σ = 290239488. Its totient is φ = 176869056.

The previous prime is 231307099. The next prime is 231307123. The reversal of 231307105 is 501703132.

It is not a de Polignac number, because 231307105 - 2¹¹ = 231305057 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603744 + ... + 604126.

It is an arithmetic number, because the mean of its divisors is an integer number (12093312).

Almost surely, 2^231307105 is an apocalyptic number.

It is an amenable number.

231307105 is a deficient number, since it is larger than the sum of its proper divisors (58932383).

231307105 is an equidigital number, since it uses as much as digits as its factorization.

231307105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 231307105 is about 15208.7838106799. The cubic root of 231307105 is about 613.8510330147.

The spelling of 231307105 in words is "two hundred thirty-one million, three hundred seven thousand, one hundred five".