231102275 has 12 divisors (see below), whose sum is σ = 299026992. Its totient is φ = 176843040.

The previous prime is 231102271. The next prime is 231102293. The reversal of 231102275 is 572201132.

It is a happy number.

It is not a de Polignac number, because 231102275 - 2² = 231102271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231102275.

It is not an unprimeable number, because it can be changed into a prime (231102271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200384 + ... + 201533.

It is an arithmetic number, because the mean of its divisors is an integer number (24918916).

Almost surely, 2^231102275 is an apocalyptic number.

231102275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231102275 is a deficient number, since it is larger than the sum of its proper divisors (67924717).

231102275 is a wasteful number, since it uses less digits than its factorization.

231102275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401950 (or 401945 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 231102275 is about 15202.0483817149. The cubic root of 231102275 is about 613.6697844540.

The spelling of 231102275 in words is "two hundred thirty-one million, one hundred two thousand, two hundred seventy-five".