120111102 has 24 divisors (see below), whose sum is σ = 267275736. Its totient is φ = 38954736.

The previous prime is 120111073. The next prime is 120111163. The reversal of 120111102 is 201111021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89508 + ... + 90839.

It is an arithmetic number, because the mean of its divisors is an integer number (11136489).

Almost surely, 2^120111102 is an apocalyptic number.

120111102 is an abundant number, since it is smaller than the sum of its proper divisors (147164634).

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

120111102 is a wasteful number, since it uses less digits than its factorization.

120111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180392 (or 180389 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 120111102 is about 10959.5210661780. The cubic root of 120111102 is about 493.3945907417.

Adding to 120111102 its reverse (201111021), we get a palindrome (321222123).

The spelling of 120111102 in words is "one hundred twenty million, one hundred eleven thousand, one hundred two".