231352443 has 40 divisors (see below), whose sum is σ = 401507040. Its totient is φ = 130014720.

The previous prime is 231352441. The next prime is 231352477. The reversal of 231352443 is 344253132.

It is not a de Polignac number, because 231352443 - 2¹ = 231352441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231352441) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31243 + ... + 37931.

It is an arithmetic number, because the mean of its divisors is an integer number (10037676).

Almost surely, 2^231352443 is an apocalyptic number.

231352443 is a deficient number, since it is larger than the sum of its proper divisors (170154597).

231352443 is an equidigital number, since it uses as much as digits as its factorization.

231352443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6769 (or 6760 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 231352443 is about 15210.2742578824. The cubic root of 231352443 is about 613.8911369276.

It can be divided in two parts, 2313 and 52443, that added together give a square (54756 = 234²).

The spelling of 231352443 in words is "two hundred thirty-one million, three hundred fifty-two thousand, four hundred forty-three".