23231433 has 16 divisors (see below), whose sum is σ = 32724800. Its totient is φ = 14659488.

The previous prime is 23231399. The next prime is 23231473. The reversal of 23231433 is 33413232.

It is not a de Polignac number, because 23231433 - 2¹⁷ = 23100361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231473) 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, 20013 + ... + 21141.

It is an arithmetic number, because the mean of its divisors is an integer number (2045300).

Almost surely, 2^23231433 is an apocalyptic number.

It is an amenable number.

23231433 is a deficient number, since it is larger than the sum of its proper divisors (9493367).

23231433 is an equidigital number, since it uses as much as digits as its factorization.

23231433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1151 counting only the distinct ones).

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

The square root of 23231433 is about 4819.8996877528. The cubic root of 23231433 is about 285.3373782375.

Adding to 23231433 its reverse (33413232), we get a palindrome (56644665).

The spelling of 23231433 in words is "twenty-three million, two hundred thirty-one thousand, four hundred thirty-three".