12011121079 has 2 divisors, whose sum is σ = 12011121080. Its totient is φ = 12011121078.

The previous prime is 12011121047. The next prime is 12011121097. The reversal of 12011121079 is 97012111021.

Together with next prime (12011121097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011121079 - 2⁵ = 12011121047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011121679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005560539 + 6005560540.

It is an arithmetic number, because the mean of its divisors is an integer number (6005560540).

Almost surely, 2^12011121079 is an apocalyptic number.

12011121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011121079 is an equidigital number, since it uses as much as digits as its factorization.

12011121079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 12011121079 in words is "twelve billion, eleven million, one hundred twenty-one thousand, seventy-nine".