120390769091 has 4 divisors (see below), whose sum is σ = 121063343400. Its totient is φ = 119718194784.

The previous prime is 120390769043. The next prime is 120390769153. The reversal of 120390769091 is 190967093021.

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 120390769091 - 2³⁰ = 119317027267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120390769691) 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 in 3 ways as a sum of consecutive naturals, for example, 336286886 + ... + 336287243.

It is an arithmetic number, because the mean of its divisors is an integer number (30265835850).

Almost surely, 2^120390769091 is an apocalyptic number.

120390769091 is a deficient number, since it is larger than the sum of its proper divisors (672574309).

120390769091 is an equidigital number, since it uses as much as digits as its factorization.

120390769091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672574308.

The product of its (nonzero) digits is 183708, while the sum is 47.

The spelling of 120390769091 in words is "one hundred twenty billion, three hundred ninety million, seven hundred sixty-nine thousand, ninety-one".