121341494279 has 2 divisors, whose sum is σ = 121341494280. Its totient is φ = 121341494278.

The previous prime is 121341494237. The next prime is 121341494389. The reversal of 121341494279 is 972494143121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121341494279 - 2²⁰ = 121340445703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121341494579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670747139 + 60670747140.

It is an arithmetic number, because the mean of its divisors is an integer number (60670747140).

Almost surely, 2^121341494279 is an apocalyptic number.

121341494279 is a deficient number, since it is larger than the sum of its proper divisors (1).

121341494279 is an equidigital number, since it uses as much as digits as its factorization.

121341494279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The spelling of 121341494279 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred ninety-four thousand, two hundred seventy-nine".