12303320031 has 24 divisors (see below), whose sum is σ = 18551012064. Its totient is φ = 7849690560.

The previous prime is 12303320009. The next prime is 12303320041. The reversal of 12303320031 is 13002330321.

12303320031 is a `hidden beast` number, since 12 + 303 + 320 + 0 + 31 = 666.

It is not a de Polignac number, because 12303320031 - 2⁵ = 12303319999 is a prime.

It is a super-2 number, since 2×12303320031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12303319986 and 12303320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303320041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282531 + ... + 323156.

It is an arithmetic number, because the mean of its divisors is an integer number (772958836).

Almost surely, 2^12303320031 is an apocalyptic number.

12303320031 is a deficient number, since it is larger than the sum of its proper divisors (6247692033).

12303320031 is a wasteful number, since it uses less digits than its factorization.

12303320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605791 (or 605788 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12303320031 its reverse (13002330321), we get a palindrome (25305650352).

The spelling of 12303320031 in words is "twelve billion, three hundred three million, three hundred twenty thousand, thirty-one".