23131201 has 4 divisors (see below), whose sum is σ = 23157504. Its totient is φ = 23104900.

The previous prime is 23131193. The next prime is 23131211. The reversal of 23131201 is 10213132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23131201 - 2³ = 23131193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131211) 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, 11785 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (5789376).

Almost surely, 2^23131201 is an apocalyptic number.

It is an amenable number.

23131201 is a deficient number, since it is larger than the sum of its proper divisors (26303).

23131201 is an equidigital number, since it uses as much as digits as its factorization.

23131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26302.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 23131201 is about 4809.4907214798. The cubic root of 23131201 is about 284.9264240153.

Adding to 23131201 its reverse (10213132), we get a palindrome (33344333).

It can be divided in two parts, 23131 and 201, that added together give a palindrome (23332).

The spelling of 23131201 in words is "twenty-three million, one hundred thirty-one thousand, two hundred one".