23210201231 has 4 divisors (see below), whose sum is σ = 26525944272. Its totient is φ = 19894458192.

The previous prime is 23210201213. The next prime is 23210201233. The reversal of 23210201231 is 13210201232.

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

It is not a de Polignac number, because 23210201231 - 2¹⁰ = 23210200207 is a prime.

It is a super-2 number, since 2×23210201231² (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 (23210201233) 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, 1657871510 + ... + 1657871523.

It is an arithmetic number, because the mean of its divisors is an integer number (6631486068).

Almost surely, 2^23210201231 is an apocalyptic number.

23210201231 is a deficient number, since it is larger than the sum of its proper divisors (3315743041).

23210201231 is an equidigital number, since it uses as much as digits as its factorization.

23210201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315743040.

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

Adding to 23210201231 its reverse (13210201232), we get a palindrome (36420402463).

Subtracting from 23210201231 its reverse (13210201232), we obtain a palindrome (9999999999).

The spelling of 23210201231 in words is "twenty-three billion, two hundred ten million, two hundred one thousand, two hundred thirty-one".