12311031033 has 24 divisors (see below), whose sum is σ = 20326724288. Its totient is φ = 7033576032.

The previous prime is 12311030993. The next prime is 12311031043. The reversal of 12311031033 is 33013011321.

It is a happy number.

12311031033 is a `hidden beast` number, since 12 + 311 + 0 + 310 + 33 = 666.

It is not a de Polignac number, because 12311031033 - 2¹⁸ = 12310768889 is a prime.

It is a super-2 number, since 2×12311031033² (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 = 12311030997 and 12311031015.

It is not an unprimeable number, because it can be changed into a prime (12311031043) 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, 403410 + ... + 432852.

Almost surely, 2^12311031033 is an apocalyptic number.

It is an amenable number.

12311031033 is a deficient number, since it is larger than the sum of its proper divisors (8015693255).

12311031033 is a wasteful number, since it uses less digits than its factorization.

12311031033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36093 (or 36090 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 12311031033 its reverse (33013011321), we get a palindrome (45324042354).

The spelling of 12311031033 in words is "twelve billion, three hundred eleven million, thirty-one thousand, thirty-three".