12311202111 has 16 divisors (see below), whose sum is σ = 18446217216. Its totient is φ = 7246727136.

The previous prime is 12311202107. The next prime is 12311202139. The reversal of 12311202111 is 11120211321.

It is not a de Polignac number, because 12311202111 - 2² = 12311202107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311209111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6861535 + ... + 6863328.

It is an arithmetic number, because the mean of its divisors is an integer number (1152888576).

Almost surely, 2^12311202111 is an apocalyptic number.

12311202111 is a deficient number, since it is larger than the sum of its proper divisors (6135015105).

12311202111 is a wasteful number, since it uses less digits than its factorization.

12311202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13724902.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12311202111 its reverse (11120211321), we get a palindrome (23431413432).

The spelling of 12311202111 in words is "twelve billion, three hundred eleven million, two hundred two thousand, one hundred eleven".