23013031 has 4 divisors (see below), whose sum is σ = 23328352. Its totient is φ = 22697712.

The previous prime is 23013007. The next prime is 23013059. The reversal of 23013031 is 13031032.

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 23013031 - 2⁹ = 23012519 is a prime.

It is a super-2 number, since 2×23013031² = 1059199191613922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013131) 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, 157551 + ... + 157696.

It is an arithmetic number, because the mean of its divisors is an integer number (5832088).

Almost surely, 2^23013031 is an apocalyptic number.

23013031 is a deficient number, since it is larger than the sum of its proper divisors (315321).

23013031 is an equidigital number, since it uses as much as digits as its factorization.

23013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315320.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 23013031 is about 4797.1899066016. The cubic root of 23013031 is about 284.4403957158.

Adding to 23013031 its reverse (13031032), we get a palindrome (36044063).

The spelling of 23013031 in words is "twenty-three million, thirteen thousand, thirty-one".