120530197091 has 4 divisors (see below), whose sum is σ = 120535233000. Its totient is φ = 120525161184.

The previous prime is 120530197087. The next prime is 120530197111. The reversal of 120530197091 is 190791035021.

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

It is a cyclic number.

It is not a de Polignac number, because 120530197091 - 2² = 120530197087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120530197061) 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, 2481881 + ... + 2529978.

It is an arithmetic number, because the mean of its divisors is an integer number (30133808250).

Almost surely, 2^120530197091 is an apocalyptic number.

120530197091 is a deficient number, since it is larger than the sum of its proper divisors (5035909).

120530197091 is an equidigital number, since it uses as much as digits as its factorization.

120530197091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035908.

The product of its (nonzero) digits is 17010, while the sum is 38.

The spelling of 120530197091 in words is "one hundred twenty billion, five hundred thirty million, one hundred ninety-seven thousand, ninety-one".