12331112149 has 2 divisors, whose sum is σ = 12331112150. Its totient is φ = 12331112148.

The previous prime is 12331112147. The next prime is 12331112161. The reversal of 12331112149 is 94121113321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12236341924 + 94770225 = 110618^2 + 9735^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331112149 - 2¹ = 12331112147 is a prime.

Together with 12331112147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12331112147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6165556074 + 6165556075.

It is an arithmetic number, because the mean of its divisors is an integer number (6165556075).

Almost surely, 2^12331112149 is an apocalyptic number.

It is an amenable number.

12331112149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12331112149 is an equidigital number, since it uses as much as digits as its factorization.

12331112149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

It can be divided in two parts, 123311 and 12149, that added together give a triangular number (135460 = T₅₂₀).

The spelling of 12331112149 in words is "twelve billion, three hundred thirty-one million, one hundred twelve thousand, one hundred forty-nine".