12243130637391 has 12 divisors (see below), whose sum is σ = 17690019282832. Its totient is φ = 8159549898816.

The previous prime is 12243130637389. The next prime is 12243130637393. The reversal of 12243130637391 is 19373603134221.

12243130637391 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 3 + 1 + 3 + 0 + 637 + 3 + 9 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12243130637389) and next prime (12243130637393).

It is not a de Polignac number, because 12243130637391 - 2¹ = 12243130637389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243130637393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211402171 + ... + 211460076.

Almost surely, 2^{12243130637391} is an apocalyptic number.

12243130637391 is a deficient number, since it is larger than the sum of its proper divisors (5446888645441).

12243130637391 is a wasteful number, since it uses less digits than its factorization.

12243130637391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422865470 (or 422865467 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 12243130637391 in words is "twelve trillion, two hundred forty-three billion, one hundred thirty million, six hundred thirty-seven thousand, three hundred ninety-one".