12371778631 has 2 divisors, whose sum is σ = 12371778632. Its totient is φ = 12371778630.

The previous prime is 12371778619. The next prime is 12371778641. The reversal of 12371778631 is 13687717321.

12371778631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12371778631 - 2¹⁷ = 12371647559 is a prime.

It is a super-2 number, since 2×12371778631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12371778641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6185889315 + 6185889316.

It is an arithmetic number, because the mean of its divisors is an integer number (6185889316).

Almost surely, 2^12371778631 is an apocalyptic number.

12371778631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12371778631 is an equidigital number, since it uses as much as digits as its factorization.

12371778631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 46.

The spelling of 12371778631 in words is "twelve billion, three hundred seventy-one million, seven hundred seventy-eight thousand, six hundred thirty-one".