12313331033 has 2 divisors, whose sum is σ = 12313331034. Its totient is φ = 12313331032.

The previous prime is 12313331021. The next prime is 12313331039. The reversal of 12313331033 is 33013331321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9975415129 + 2337915904 = 99877^2 + 48352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12313331033 is a prime.

It is a super-2 number, since 2×12313331033² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12313331039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156665516 + 6156665517.

It is an arithmetic number, because the mean of its divisors is an integer number (6156665517).

Almost surely, 2^12313331033 is an apocalyptic number.

It is an amenable number.

12313331033 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313331033 is an equidigital number, since it uses as much as digits as its factorization.

12313331033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 12313331033 its reverse (33013331321), we get a palindrome (45326662354).

The spelling of 12313331033 in words is "twelve billion, three hundred thirteen million, three hundred thirty-one thousand, thirty-three".