12311322023 has 96 divisors (see below), whose sum is σ = 17767948800. Its totient is φ = 8276463360.

The previous prime is 12311322019. The next prime is 12311322041. The reversal of 12311322023 is 32022311321.

It is not a de Polignac number, because 12311322023 - 2² = 12311322019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311321986 and 12311322004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311322013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17363993 + ... + 17364701.

It is an arithmetic number, because the mean of its divisors is an integer number (185082800).

Almost surely, 2^12311322023 is an apocalyptic number.

12311322023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12311322023 is a deficient number, since it is larger than the sum of its proper divisors (5456626777).

12311322023 is a wasteful number, since it uses less digits than its factorization.

12311322023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12311322023 its reverse (32022311321), we get a palindrome (44333633344).

The spelling of 12311322023 in words is "twelve billion, three hundred eleven million, three hundred twenty-two thousand, twenty-three".