231423033 has 16 divisors (see below), whose sum is σ = 329472000. Its totient is φ = 144140304.

The previous prime is 231423011. The next prime is 231423041. The reversal of 231423033 is 330324132.

It is not a de Polignac number, because 231423033 - 2⁶ = 231422969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231423733) 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, 36033 + ... + 41966.

It is an arithmetic number, because the mean of its divisors is an integer number (20592000).

Almost surely, 2^231423033 is an apocalyptic number.

231423033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231423033 is a deficient number, since it is larger than the sum of its proper divisors (98048967).

231423033 is a wasteful number, since it uses less digits than its factorization.

231423033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78068.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 231423033 is about 15212.5945518836. The cubic root of 231423033 is about 613.9535671720.

Adding to 231423033 its reverse (330324132), we get a palindrome (561747165).

The spelling of 231423033 in words is "two hundred thirty-one million, four hundred twenty-three thousand, thirty-three".