12312210231 has 12 divisors (see below), whose sum is σ = 17788581720. Its totient is φ = 8206165680.

The previous prime is 12312210187. The next prime is 12312210233. The reversal of 12312210231 is 13201221321.

It is not a de Polignac number, because 12312210231 - 2¹⁴ = 12312193847 is a prime.

It is a super-2 number, since 2×12312210231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312210233) 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 11 ways as a sum of consecutive naturals, for example, 124536 + ... + 200333.

It is an arithmetic number, because the mean of its divisors is an integer number (1482381810).

Almost surely, 2^12312210231 is an apocalyptic number.

12312210231 is a deficient number, since it is larger than the sum of its proper divisors (5476371489).

12312210231 is a wasteful number, since it uses less digits than its factorization.

12312210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329086 (or 329083 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12312210231 its reverse (13201221321), we get a palindrome (25513431552).

The spelling of 12312210231 in words is "twelve billion, three hundred twelve million, two hundred ten thousand, two hundred thirty-one".