23047131 has 4 divisors (see below), whose sum is σ = 30729512. Its totient is φ = 15364752.

The previous prime is 23047109. The next prime is 23047151. The reversal of 23047131 is 13174032.

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

It is not a de Polignac number, because 23047131 - 2⁶ = 23047067 is a prime.

It is a super-2 number, since 2×23047131² = 1062340494662322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23047098 and 23047107.

It is not an unprimeable number, because it can be changed into a prime (23047151) 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, 3841186 + ... + 3841191.

It is an arithmetic number, because the mean of its divisors is an integer number (7682378).

Almost surely, 2^23047131 is an apocalyptic number.

23047131 is a deficient number, since it is larger than the sum of its proper divisors (7682381).

23047131 is an equidigital number, since it uses as much as digits as its factorization.

23047131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682380.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 23047131 is about 4800.7427550328. The cubic root of 23047131 is about 284.5808180511.

The spelling of 23047131 in words is "twenty-three million, forty-seven thousand, one hundred thirty-one".