231323433 has 8 divisors (see below), whose sum is σ = 336470496. Its totient is φ = 140196000.

The previous prime is 231323413. The next prime is 231323441. The reversal of 231323433 is 334323132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231323433 - 2⁸ = 231323177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231323413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3504868 + ... + 3504933.

It is an arithmetic number, because the mean of its divisors is an integer number (42058812).

Almost surely, 2^231323433 is an apocalyptic number.

It is an amenable number.

231323433 is a deficient number, since it is larger than the sum of its proper divisors (105147063).

231323433 is a wasteful number, since it uses less digits than its factorization.

231323433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009815.

The product of its digits is 3888, while the sum is 24.

The square root of 231323433 is about 15209.3205962660. The cubic root of 231323433 is about 613.8654766174.

Adding to 231323433 its reverse (334323132), we get a palindrome (565646565).

It can be divided in two parts, 23132 and 3433, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 231323433 in words is "two hundred thirty-one million, three hundred twenty-three thousand, four hundred thirty-three".