233031423 has 16 divisors (see below), whose sum is σ = 327375360. Its totient is φ = 147152544.

The previous prime is 233031419. The next prime is 233031437. The reversal of 233031423 is 324130332.

It is not a de Polignac number, because 233031423 - 2² = 233031419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233031423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233031493) 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, 9288 + ... + 23501.

It is an arithmetic number, because the mean of its divisors is an integer number (20460960).

Almost surely, 2^233031423 is an apocalyptic number.

233031423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

233031423 is a deficient number, since it is larger than the sum of its proper divisors (94343937).

233031423 is a wasteful number, since it uses less digits than its factorization.

233031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32918.

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

The square root of 233031423 is about 15265.3667823607. The cubic root of 233031423 is about 615.3726104753.

Adding to 233031423 its reverse (324130332), we get a palindrome (557161755).

The spelling of 233031423 in words is "two hundred thirty-three million, thirty-one thousand, four hundred twenty-three".