120777099 has 4 divisors (see below), whose sum is σ = 161036136. Its totient is φ = 80518064.

The previous prime is 120777049. The next prime is 120777101. The reversal of 120777099 is 990777021.

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 120777099 - 2⁹ = 120776587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120777099.

It is not an unprimeable number, because it can be changed into a prime (120777029) 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, 20129514 + ... + 20129519.

It is an arithmetic number, because the mean of its divisors is an integer number (40259034).

Almost surely, 2^120777099 is an apocalyptic number.

120777099 is a deficient number, since it is larger than the sum of its proper divisors (40259037).

120777099 is an equidigital number, since it uses as much as digits as its factorization.

120777099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40259036.

The product of its (nonzero) digits is 55566, while the sum is 42.

The square root of 120777099 is about 10989.8634659399. The cubic root of 120777099 is about 494.3048419788.

The spelling of 120777099 in words is "one hundred twenty million, seven hundred seventy-seven thousand, ninety-nine".