120430155 has 16 divisors (see below), whose sum is σ = 195565824. Its totient is φ = 63270240.

The previous prime is 120430109. The next prime is 120430169. The reversal of 120430155 is 551034021.

It is not a de Polignac number, because 120430155 - 2⁹ = 120429643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58911 + ... + 60920.

It is an arithmetic number, because the mean of its divisors is an integer number (12222864).

Almost surely, 2^120430155 is an apocalyptic number.

120430155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120430155 is a deficient number, since it is larger than the sum of its proper divisors (75135669).

120430155 is a wasteful number, since it uses less digits than its factorization.

120430155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119906.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 120430155 is about 10974.0673863431. The cubic root of 120430155 is about 493.8310750805.

Adding to 120430155 its reverse (551034021), we get a palindrome (671464176).

The spelling of 120430155 in words is "one hundred twenty million, four hundred thirty thousand, one hundred fifty-five".