23131111323 has 8 divisors (see below), whose sum is σ = 30842851600. Its totient is φ = 15420055968.

The previous prime is 23131111307. The next prime is 23131111331. The reversal of 23131111323 is 32311113132.

It is a happy number.

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

It is not a de Polignac number, because 23131111323 - 2⁴ = 23131111307 is a prime.

It is a super-2 number, since 2×23131111323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23131111323.

It is not an unprimeable number, because it can be changed into a prime (23131111343) 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, 86428 + ... + 231801.

It is an arithmetic number, because the mean of its divisors is an integer number (3855356450).

Almost surely, 2^23131111323 is an apocalyptic number.

23131111323 is a deficient number, since it is larger than the sum of its proper divisors (7711740277).

23131111323 is a wasteful number, since it uses less digits than its factorization.

23131111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342461.

The product of its digits is 324, while the sum is 21.

Adding to 23131111323 its reverse (32311113132), we get a palindrome (55442224455).

The spelling of 23131111323 in words is "twenty-three billion, one hundred thirty-one million, one hundred eleven thousand, three hundred twenty-three".