12312323211123 has 24 divisors (see below), whose sum is σ = 19152713740160. Its totient is φ = 7576730824320.

The previous prime is 12312323211103. The next prime is 12312323211151. The reversal of 12312323211123 is 32111232321321.

12312323211123 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 2 + 323 + 211 + 123 = 666.

It is not a de Polignac number, because 12312323211123 - 2¹² = 12312323207027 is a prime.

It is a super-2 number, since 2×12312323211123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12312323211103) 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, 11086878 + ... + 12146748.

Almost surely, 2^{12312323211123} is an apocalyptic number.

12312323211123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12312323211123 is a deficient number, since it is larger than the sum of its proper divisors (6840390529037).

12312323211123 is a wasteful number, since it uses less digits than its factorization.

12312323211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159179 (or 1159176 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 12312323211123 its reverse (32111232321321), we get a palindrome (44423555532444).

The spelling of 12312323211123 in words is "twelve trillion, three hundred twelve billion, three hundred twenty-three million, two hundred eleven thousand, one hundred twenty-three".