23100011231 has 4 divisors (see below), whose sum is σ = 25200012264. Its totient is φ = 21000010200.

The previous prime is 23100011227. The next prime is 23100011239. The reversal of 23100011231 is 13211000132.

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 23100011231 - 2² = 23100011227 is a prime.

It is a super-2 number, since 2×23100011231² (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 (23100011239) 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, 1050000500 + ... + 1050000521.

It is an arithmetic number, because the mean of its divisors is an integer number (6300003066).

Almost surely, 2^23100011231 is an apocalyptic number.

23100011231 is a deficient number, since it is larger than the sum of its proper divisors (2100001033).

23100011231 is a wasteful number, since it uses less digits than its factorization.

23100011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100001032.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 23100011231 its reverse (13211000132), we get a palindrome (36311011363).

The spelling of 23100011231 in words is "twenty-three billion, one hundred million, eleven thousand, two hundred thirty-one".