231276523 has 16 divisors (see below), whose sum is σ = 249993216. Its totient is φ = 213333120.

The previous prime is 231276511. The next prime is 231276547. The reversal of 231276523 is 325672132.

It is a cyclic number.

It is not a de Polignac number, because 231276523 - 2¹⁷ = 231145451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231276593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389715 + ... + 390307.

It is an arithmetic number, because the mean of its divisors is an integer number (15624576).

Almost surely, 2^231276523 is an apocalyptic number.

231276523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

231276523 is a deficient number, since it is larger than the sum of its proper divisors (18716693).

231276523 is a wasteful number, since it uses less digits than its factorization.

231276523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194.

The product of its digits is 15120, while the sum is 31.

The square root of 231276523 is about 15207.7783716097. The cubic root of 231276523 is about 613.8239786221.

The spelling of 231276523 in words is "two hundred thirty-one million, two hundred seventy-six thousand, five hundred twenty-three".