121233019 has 2 divisors, whose sum is σ = 121233020. Its totient is φ = 121233018.

The previous prime is 121232987. The next prime is 121233029. The reversal of 121233019 is 910332121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121233019 - 2⁵ = 121232987 is a prime.

It is a super-2 number, since 2×121233019² = 29394889791708722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121233029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616509 + 60616510.

It is an arithmetic number, because the mean of its divisors is an integer number (60616510).

Almost surely, 2^121233019 is an apocalyptic number.

121233019 is a deficient number, since it is larger than the sum of its proper divisors (1).

121233019 is an equidigital number, since it uses as much as digits as its factorization.

121233019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 121233019 is about 11010.5866782838. The cubic root of 121233019 is about 494.9260427547.

The spelling of 121233019 in words is "one hundred twenty-one million, two hundred thirty-three thousand, nineteen".