23012201231 has 4 divisors (see below), whose sum is σ = 23402238600. Its totient is φ = 22622163864.

The previous prime is 23012201203. The next prime is 23012201237. The reversal of 23012201231 is 13210221032.

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 23012201231 - 2¹⁴ = 23012184847 is a prime.

It is a super-2 number, since 2×23012201231² (a number of 22 digits) 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 (23012201237) 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, 195018596 + ... + 195018713.

It is an arithmetic number, because the mean of its divisors is an integer number (5850559650).

Almost surely, 2^23012201231 is an apocalyptic number.

23012201231 is a deficient number, since it is larger than the sum of its proper divisors (390037369).

23012201231 is an equidigital number, since it uses as much as digits as its factorization.

23012201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390037368.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23012201231 its reverse (13210221032), we get a palindrome (36222422263).

The spelling of 23012201231 in words is "twenty-three billion, twelve million, two hundred one thousand, two hundred thirty-one".