121159019 has 2 divisors, whose sum is σ = 121159020. Its totient is φ = 121159018.

The previous prime is 121158971. The next prime is 121159033. The reversal of 121159019 is 910951121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121159019 - 2²⁴ = 104381803 is a prime.

It is a super-2 number, since 2×121159019² = 29359015770084722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121158982 and 121159000.

It is not a weakly prime, because it can be changed into another prime (121159039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60579509 + 60579510.

It is an arithmetic number, because the mean of its divisors is an integer number (60579510).

Almost surely, 2^121159019 is an apocalyptic number.

121159019 is a deficient number, since it is larger than the sum of its proper divisors (1).

121159019 is an equidigital number, since it uses as much as digits as its factorization.

121159019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 29.

The square root of 121159019 is about 11007.2257631067. The cubic root of 121159019 is about 494.8253221705.

The spelling of 121159019 in words is "one hundred twenty-one million, one hundred fifty-nine thousand, nineteen".