12312233031123 has 6 divisors (see below), whose sum is σ = 17784336600524. Its totient is φ = 8208155354076.

The previous prime is 12312233031113. The next prime is 12312233031233. The reversal of 12312233031123 is 32113033221321.

12312233031123 is a `hidden beast` number, since 1 + 2 + 3 + 12 + 2 + 330 + 311 + 2 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-12312233031123 is a prime.

It is a super-2 number, since 2×12312233031123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312233031113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684012946165 + ... + 684012946182.

Almost surely, 2^{12312233031123} is an apocalyptic number.

12312233031123 is a deficient number, since it is larger than the sum of its proper divisors (5472103569401).

12312233031123 is a wasteful number, since it uses less digits than its factorization.

12312233031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368025892353 (or 1368025892350 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12312233031123 its reverse (32113033221321), we get a palindrome (44425266252444).

The spelling of 12312233031123 in words is "twelve trillion, three hundred twelve billion, two hundred thirty-three million, thirty-one thousand, one hundred twenty-three".