120785708111 has 4 divisors (see below), whose sum is σ = 120819198192. Its totient is φ = 120752218032.

The previous prime is 120785708107. The next prime is 120785708149. The reversal of 120785708111 is 111807587021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111807587021 = 13 ⋅8600583617.

It is a cyclic number.

It is not a de Polignac number, because 120785708111 - 2² = 120785708107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120785708161) 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, 16739630 + ... + 16746843.

It is an arithmetic number, because the mean of its divisors is an integer number (30204799548).

Almost surely, 2^120785708111 is an apocalyptic number.

120785708111 is a deficient number, since it is larger than the sum of its proper divisors (33490081).

120785708111 is an equidigital number, since it uses as much as digits as its factorization.

120785708111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33490080.

The product of its (nonzero) digits is 31360, while the sum is 41.

The spelling of 120785708111 in words is "one hundred twenty billion, seven hundred eighty-five million, seven hundred eight thousand, one hundred eleven".