231223736775 has 24 divisors (see below), whose sum is σ = 384821651584. Its totient is φ = 122502636000.

The previous prime is 231223736761. The next prime is 231223736797. The reversal of 231223736775 is 577637322132.

231223736775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231223736775 - 2⁴ = 231223736759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10197229 + ... + 10219878.

Almost surely, 2^231223736775 is an apocalyptic number.

231223736775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231223736775 is a deficient number, since it is larger than the sum of its proper divisors (153597914809).

231223736775 is a wasteful number, since it uses less digits than its factorization.

231223736775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20417271 (or 20417266 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 48.

The spelling of 231223736775 in words is "two hundred thirty-one billion, two hundred twenty-three million, seven hundred thirty-six thousand, seven hundred seventy-five".