23431134 has 16 divisors (see below), whose sum is σ = 49619088. Its totient is φ = 7350912.

The previous prime is 23431127. The next prime is 23431139. The reversal of 23431134 is 43113432.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23431134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431139) 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, 114757 + ... + 114960.

It is an arithmetic number, because the mean of its divisors is an integer number (3101193).

Almost surely, 2^23431134 is an apocalyptic number.

23431134 is an abundant number, since it is smaller than the sum of its proper divisors (26187954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23431134 is a wasteful number, since it uses less digits than its factorization.

23431134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229739.

The product of its digits is 864, while the sum is 21.

The square root of 23431134 is about 4840.5716604550. The cubic root of 23431134 is about 286.1526480668.

Adding to 23431134 its reverse (43113432), we get a palindrome (66544566).

The spelling of 23431134 in words is "twenty-three million, four hundred thirty-one thousand, one hundred thirty-four".