12312311323 has 8 divisors (see below), whose sum is σ = 13687135616. Its totient is φ = 10998590400.

The previous prime is 12312311299. The next prime is 12312311329. The reversal of 12312311323 is 32311321321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12312311323 is a prime.

It is a super-2 number, since 2×12312311323² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12312311294 and 12312311303.

It is not an unprimeable number, because it can be changed into a prime (12312311329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15275418 + ... + 15276223.

It is an arithmetic number, because the mean of its divisors is an integer number (1710891952).

Almost surely, 2^12312311323 is an apocalyptic number.

12312311323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12312311323 is a deficient number, since it is larger than the sum of its proper divisors (1374824293).

12312311323 is a wasteful number, since it uses less digits than its factorization.

12312311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30551685.

The product of its digits is 648, while the sum is 22.

Adding to 12312311323 its reverse (32311321321), we get a palindrome (44623632644).

The spelling of 12312311323 in words is "twelve billion, three hundred twelve million, three hundred eleven thousand, three hundred twenty-three".