120420355 has 8 divisors (see below), whose sum is σ = 157641264. Its totient is φ = 87578400.

The previous prime is 120420329. The next prime is 120420361. The reversal of 120420355 is 553024021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120420355 - 2⁵ = 120420323 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094676 + ... + 1094785.

It is an arithmetic number, because the mean of its divisors is an integer number (19705158).

Almost surely, 2^120420355 is an apocalyptic number.

120420355 is a deficient number, since it is larger than the sum of its proper divisors (37220909).

120420355 is a wasteful number, since it uses less digits than its factorization.

120420355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189477.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 120420355 is about 10973.6208700684. The cubic root of 120420355 is about 493.8176795545.

Adding to 120420355 its reverse (553024021), we get a palindrome (673444376).

The spelling of 120420355 in words is "one hundred twenty million, four hundred twenty thousand, three hundred fifty-five".