231264263 has 2 divisors, whose sum is σ = 231264264. Its totient is φ = 231264262.

The previous prime is 231264251. The next prime is 231264269. The reversal of 231264263 is 362462132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231264263 - 2¹² = 231260167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231264269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115632131 + 115632132.

It is an arithmetic number, because the mean of its divisors is an integer number (115632132).

Almost surely, 2^231264263 is an apocalyptic number.

231264263 is a deficient number, since it is larger than the sum of its proper divisors (1).

231264263 is an equidigital number, since it uses as much as digits as its factorization.

231264263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 231264263 is about 15207.3752830658. The cubic root of 231264263 is about 613.8131321328.

The spelling of 231264263 in words is "two hundred thirty-one million, two hundred sixty-four thousand, two hundred sixty-three".