23210021131 has 8 divisors (see below), whose sum is σ = 25797759984. Its totient is φ = 20701905120.

The previous prime is 23210021113. The next prime is 23210021167. The reversal of 23210021131 is 13112001232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23210021131 - 2²⁷ = 23075803403 is a prime.

It is a super-3 number, since 3×23210021131³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23210021111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19905096 + ... + 19906261.

It is an arithmetic number, because the mean of its divisors is an integer number (3224719998).

Almost surely, 2^23210021131 is an apocalyptic number.

23210021131 is a deficient number, since it is larger than the sum of its proper divisors (2587738853).

23210021131 is a wasteful number, since it uses less digits than its factorization.

23210021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39811421.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23210021131 its reverse (13112001232), we get a palindrome (36322022363).

The spelling of 23210021131 in words is "twenty-three billion, two hundred ten million, twenty-one thousand, one hundred thirty-one".