12312821223 has 6 divisors (see below), whose sum is σ = 17785186224. Its totient is φ = 8208547476.

The previous prime is 12312821177. The next prime is 12312821243. The reversal of 12312821223 is 32212821321.

It is not a de Polignac number, because 12312821223 - 2⁹ = 12312820711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312821243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684045615 + ... + 684045632.

It is an arithmetic number, because the mean of its divisors is an integer number (2964197704).

Almost surely, 2^12312821223 is an apocalyptic number.

12312821223 is a deficient number, since it is larger than the sum of its proper divisors (5472365001).

12312821223 is a wasteful number, since it uses less digits than its factorization.

12312821223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368091253 (or 1368091250 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The spelling of 12312821223 in words is "twelve billion, three hundred twelve million, eight hundred twenty-one thousand, two hundred twenty-three".