23311322321231 has 16 divisors (see below), whose sum is σ = 27999836659200. Its totient is φ = 18974889271008.

The previous prime is 23311322321159. The next prime is 23311322321251. The reversal of 23311322321231 is 13212322311332.

It is not a de Polignac number, because 23311322321231 - 2²² = 23311318126927 is a prime.

It is a super-2 number, since 2×23311322321231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23311322321194 and 23311322321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311322321251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520807916 + ... + 520852673.

It is an arithmetic number, because the mean of its divisors is an integer number (1749989791200).

Almost surely, 2^{23311322321231} is an apocalyptic number.

23311322321231 is a deficient number, since it is larger than the sum of its proper divisors (4688514337969).

23311322321231 is a wasteful number, since it uses less digits than its factorization.

23311322321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041660758.

The product of its digits is 7776, while the sum is 29.

Adding to 23311322321231 its reverse (13212322311332), we get a palindrome (36523644632563).

The spelling of 23311322321231 in words is "twenty-three trillion, three hundred eleven billion, three hundred twenty-two million, three hundred twenty-one thousand, two hundred thirty-one".