231051163 has 4 divisors (see below), whose sum is σ = 264058480. Its totient is φ = 198043848.

The previous prime is 231051157. The next prime is 231051173. The reversal of 231051163 is 361150132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231051163 - 2²⁵ = 197496731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231051133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16503648 + ... + 16503661.

It is an arithmetic number, because the mean of its divisors is an integer number (66014620).

Almost surely, 2^231051163 is an apocalyptic number.

231051163 is a deficient number, since it is larger than the sum of its proper divisors (33007317).

231051163 is an equidigital number, since it uses as much as digits as its factorization.

231051163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33007316.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 231051163 is about 15200.3671995120. The cubic root of 231051163 is about 613.6245401242.

The spelling of 231051163 in words is "two hundred thirty-one million, fifty-one thousand, one hundred sixty-three".