111111000102 has 28 divisors (see below), whose sum is σ = 249885441780. Its totient is φ = 37036999548.

The previous prime is 111111000101. The next prime is 111111000109. The reversal of 111111000102 is 201000111111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111000101) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 38102452 + ... + 38105367.

Almost surely, 2^111111000102 is an apocalyptic number.

111111000102 is an abundant number, since it is smaller than the sum of its proper divisors (138774441678).

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

111111000102 is an frugal number, since it uses more digits than its factorization.

111111000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76207839 (or 76207824 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111111000102 its reverse (201000111111), we get a palindrome (312111111213).

The spelling of 111111000102 in words is "one hundred eleven billion, one hundred eleven million, one hundred two", and thus it is an aban number.