231013323 has 16 divisors (see below), whose sum is σ = 362374560. Its totient is φ = 144949248.

The previous prime is 231013309. The next prime is 231013327. The reversal of 231013323 is 323310132.

It is not a de Polignac number, because 231013323 - 2⁶ = 231013259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231013296 and 231013305.

It is not an unprimeable number, because it can be changed into a prime (231013327) 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, 251190 + ... + 252107.

It is an arithmetic number, because the mean of its divisors is an integer number (22648410).

Almost surely, 2^231013323 is an apocalyptic number.

231013323 is a deficient number, since it is larger than the sum of its proper divisors (131361237).

231013323 is a wasteful number, since it uses less digits than its factorization.

231013323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503323 (or 503317 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 231013323 is about 15199.1224417727. The cubic root of 231013323 is about 613.5910398668.

Adding to 231013323 its reverse (323310132), we get a palindrome (554323455).

The spelling of 231013323 in words is "two hundred thirty-one million, thirteen thousand, three hundred twenty-three".