12379921133 has 2 divisors, whose sum is σ = 12379921134. Its totient is φ = 12379921132.

The previous prime is 12379921129. The next prime is 12379921171. The reversal of 12379921133 is 33112997321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9573252649 + 2806668484 = 97843^2 + 52978^2 .

It is a cyclic number.

It is not a de Polignac number, because 12379921133 - 2² = 12379921129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12379921123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6189960566 + 6189960567.

It is an arithmetic number, because the mean of its divisors is an integer number (6189960567).

Almost surely, 2^12379921133 is an apocalyptic number.

It is an amenable number.

12379921133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12379921133 is an equidigital number, since it uses as much as digits as its factorization.

12379921133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The spelling of 12379921133 in words is "twelve billion, three hundred seventy-nine million, nine hundred twenty-one thousand, one hundred thirty-three".