120121193 has 4 divisors (see below), whose sum is σ = 120785028. Its totient is φ = 119457360.

The previous prime is 120121181. The next prime is 120121207. The reversal of 120121193 is 391121021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45333289 + 74787904 = 6733^2 + 8648^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121193 - 2⁸ = 120120937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331646 + ... + 332007.

It is an arithmetic number, because the mean of its divisors is an integer number (30196257).

Almost surely, 2^120121193 is an apocalyptic number.

It is an amenable number.

120121193 is a deficient number, since it is larger than the sum of its proper divisors (663835).

120121193 is an equidigital number, since it uses as much as digits as its factorization.

120121193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663834.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 120121193 is about 10959.9814324660. The cubic root of 120121193 is about 493.4084076865.

The spelling of 120121193 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred ninety-three".