12320323131 has 8 divisors (see below), whose sum is σ = 16737042960. Its totient is φ = 8058576032.

The previous prime is 12320323111. The next prime is 12320323139. The reversal of 12320323131 is 13132302321.

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

It is a cyclic number.

It is not a de Polignac number, because 12320323131 - 2¹⁵ = 12320290363 is a prime.

It is a super-2 number, since 2×12320323131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12320323098 and 12320323107.

It is not an unprimeable number, because it can be changed into a prime (12320323139) 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, 38742996 + ... + 38743313.

It is an arithmetic number, because the mean of its divisors is an integer number (2092130370).

Almost surely, 2^12320323131 is an apocalyptic number.

12320323131 is a deficient number, since it is larger than the sum of its proper divisors (4416719829).

12320323131 is an equidigital number, since it uses as much as digits as its factorization.

12320323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77486365.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12320323131 its reverse (13132302321), we get a palindrome (25452625452).

The spelling of 12320323131 in words is "twelve billion, three hundred twenty million, three hundred twenty-three thousand, one hundred thirty-one".