120111255 has 144 divisors (see below), whose sum is σ = 255615360. Its totient is φ = 53887680.

The previous prime is 120111253. The next prime is 120111259. The reversal of 120111255 is 552111021.

It is not a de Polignac number, because 120111255 - 2¹ = 120111253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111253) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2793264 + ... + 2793306.

Almost surely, 2^120111255 is an apocalyptic number.

120111255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120111255 is an abundant number, since it is smaller than the sum of its proper divisors (135504105).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120111255 is a wasteful number, since it uses less digits than its factorization.

120111255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 120111255 is about 10959.5280464078. The cubic root of 120111255 is about 493.3948002403.

Adding to 120111255 its reverse (552111021), we get a palindrome (672222276).

The spelling of 120111255 in words is "one hundred twenty million, one hundred eleven thousand, two hundred fifty-five".