23210002231 has 4 divisors (see below), whose sum is σ = 24995387032. Its totient is φ = 21424617432.

The previous prime is 23210002229. The next prime is 23210002261. The reversal of 23210002231 is 13220001232.

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 23210002231 - 2¹ = 23210002229 is a prime.

It is a super-2 number, since 2×23210002231² (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 (23210002201) 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, 892692381 + ... + 892692406.

It is an arithmetic number, because the mean of its divisors is an integer number (6248846758).

Almost surely, 2^23210002231 is an apocalyptic number.

23210002231 is a deficient number, since it is larger than the sum of its proper divisors (1785384801).

23210002231 is a wasteful number, since it uses less digits than its factorization.

23210002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785384800.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23210002231 its reverse (13220001232), we get a palindrome (36430003463).

Subtracting from 23210002231 its reverse (13220001232), we obtain a palindrome (9990000999).

The spelling of 23210002231 in words is "twenty-three billion, two hundred ten million, two thousand, two hundred thirty-one".