12312202311 has 8 divisors (see below), whose sum is σ = 18240299760. Its totient is φ = 8208134856.

The previous prime is 12312202307. The next prime is 12312202319. The reversal of 12312202311 is 11320221321.

It is not a de Polignac number, because 12312202311 - 2² = 12312202307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312202319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228003720 + ... + 228003773.

It is an arithmetic number, because the mean of its divisors is an integer number (2280037470).

Almost surely, 2^12312202311 is an apocalyptic number.

12312202311 is a deficient number, since it is larger than the sum of its proper divisors (5928097449).

12312202311 is an equidigital number, since it uses as much as digits as its factorization.

12312202311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456007502 (or 456007496 counting only the distinct ones).

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

Adding to 12312202311 its reverse (11320221321), we get a palindrome (23632423632).

The spelling of 12312202311 in words is "twelve billion, three hundred twelve million, two hundred two thousand, three hundred eleven".