12311130233 has 4 divisors (see below), whose sum is σ = 12327523968. Its totient is φ = 12294736500.

The previous prime is 12311130211. The next prime is 12311130239. The reversal of 12311130233 is 33203111321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12311130233 - 2⁸ = 12311129977 is a prime.

It is a super-2 number, since 2×12311130233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311130239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8195741 + ... + 8197242.

It is an arithmetic number, because the mean of its divisors is an integer number (3081880992).

Almost surely, 2^12311130233 is an apocalyptic number.

It is an amenable number.

12311130233 is a deficient number, since it is larger than the sum of its proper divisors (16393735).

12311130233 is an equidigital number, since it uses as much as digits as its factorization.

12311130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16393734.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12311130233 its reverse (33203111321), we get a palindrome (45514241554).

The spelling of 12311130233 in words is "twelve billion, three hundred eleven million, one hundred thirty thousand, two hundred thirty-three".