120855905279 has 4 divisors (see below), whose sum is σ = 122558101200. Its totient is φ = 119153709360.

The previous prime is 120855905243. The next prime is 120855905329. The reversal of 120855905279 is 972509558021.

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 120855905279 - 2²⁴ = 120839128063 is a prime.

It is a super-2 number, since 2×120855905279² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120855905279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120855901279) 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, 851097854 + ... + 851097995.

It is an arithmetic number, because the mean of its divisors is an integer number (30639525300).

Almost surely, 2^120855905279 is an apocalyptic number.

120855905279 is a deficient number, since it is larger than the sum of its proper divisors (1702195921).

120855905279 is an equidigital number, since it uses as much as digits as its factorization.

120855905279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702195920.

The product of its (nonzero) digits is 2268000, while the sum is 53.

The spelling of 120855905279 in words is "one hundred twenty billion, eight hundred fifty-five million, nine hundred five thousand, two hundred seventy-nine".