121012379 has 2 divisors, whose sum is σ = 121012380. Its totient is φ = 121012378.

The previous prime is 121012343. The next prime is 121012393. The reversal of 121012379 is 973210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121012379 - 2⁸ = 121012123 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506189 + 60506190.

It is an arithmetic number, because the mean of its divisors is an integer number (60506190).

Almost surely, 2^121012379 is an apocalyptic number.

121012379 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012379 is an equidigital number, since it uses as much as digits as its factorization.

121012379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 121012379 is about 11000.5626674275. The cubic root of 121012379 is about 494.6256108617.

The spelling of 121012379 in words is "one hundred twenty-one million, twelve thousand, three hundred seventy-nine".