12121133879 has 2 divisors, whose sum is σ = 12121133880. Its totient is φ = 12121133878.

The previous prime is 12121133861. The next prime is 12121133887. The reversal of 12121133879 is 97833112121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121133879 - 2²⁸ = 11852698423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121133179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060566939 + 6060566940.

It is an arithmetic number, because the mean of its divisors is an integer number (6060566940).

Almost surely, 2^12121133879 is an apocalyptic number.

12121133879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121133879 is an equidigital number, since it uses as much as digits as its factorization.

12121133879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The spelling of 12121133879 in words is "twelve billion, one hundred twenty-one million, one hundred thirty-three thousand, eight hundred seventy-nine".