23431099 has 4 divisors (see below), whose sum is σ = 23444136. Its totient is φ = 23418064.

The previous prime is 23431097. The next prime is 23431103. The reversal of 23431099 is 99013432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23431099 - 2¹ = 23431097 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23431099.

It is not an unprimeable number, because it can be changed into a prime (23431097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3289 + ... + 7594.

It is an arithmetic number, because the mean of its divisors is an integer number (5861034).

Almost surely, 2^23431099 is an apocalyptic number.

23431099 is a deficient number, since it is larger than the sum of its proper divisors (13037).

23431099 is a wasteful number, since it uses less digits than its factorization.

23431099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13036.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23431099 is about 4840.5680451782. The cubic root of 23431099 is about 286.1525055876.

The spelling of 23431099 in words is "twenty-three million, four hundred thirty-one thousand, ninety-nine".