111232401102 has 48 divisors (see below), whose sum is σ = 251782577280. Its totient is φ = 35444472000.

The previous prime is 111232401053. The next prime is 111232401139. The reversal of 111232401102 is 201104232111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1002174 + ... + 1107617.

It is an arithmetic number, because the mean of its divisors is an integer number (5245470360).

Almost surely, 2^111232401102 is an apocalyptic number.

111232401102 is an abundant number, since it is smaller than the sum of its proper divisors (140550176178).

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

111232401102 is a wasteful number, since it uses less digits than its factorization.

111232401102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109929 (or 2109926 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111232401102 its reverse (201104232111), we get a palindrome (312336633213).

The spelling of 111232401102 in words is "one hundred eleven billion, two hundred thirty-two million, four hundred one thousand, one hundred two".