111100120102 has 16 divisors (see below), whose sum is σ = 172035510912. Its totient is φ = 53755148160.

The previous prime is 111100120099. The next prime is 111100120123. The reversal of 111100120102 is 201021001111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436238 + ... + 1511614.

It is an arithmetic number, because the mean of its divisors is an integer number (10752219432).

Almost surely, 2^111100120102 is an apocalyptic number.

111100120102 is a deficient number, since it is larger than the sum of its proper divisors (60935390810).

111100120102 is a wasteful number, since it uses less digits than its factorization.

111100120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99183.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111100120102 its reverse (201021001111), we get a palindrome (312121121213).

The spelling of 111100120102 in words is "one hundred eleven billion, one hundred million, one hundred twenty thousand, one hundred two".