23101231 has 4 divisors (see below), whose sum is σ = 23846464. Its totient is φ = 22356000.

The previous prime is 23101219. The next prime is 23101279. The reversal of 23101231 is 13210132.

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 23101231 - 2⁷ = 23101103 is a prime.

It is a super-2 number, since 2×23101231² = 1067333747430722, which 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 (23101531) 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, 372570 + ... + 372631.

It is an arithmetic number, because the mean of its divisors is an integer number (5961616).

Almost surely, 2^23101231 is an apocalyptic number.

23101231 is a deficient number, since it is larger than the sum of its proper divisors (745233).

23101231 is an equidigital number, since it uses as much as digits as its factorization.

23101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745232.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 23101231 is about 4806.3739971001. The cubic root of 23101231 is about 284.8033156136.

Adding to 23101231 its reverse (13210132), we get a palindrome (36311363).

It can be divided in two parts, 23101 and 231, that added together give a palindrome (23332).

The spelling of 23101231 in words is "twenty-three million, one hundred one thousand, two hundred thirty-one".