111621100104 has 96 divisors (see below), whose sum is σ = 303514192800. Its totient is φ = 37058757120.

The previous prime is 111621100099. The next prime is 111621100121. The reversal of 111621100104 is 401001126111.

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

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, 24038407 + ... + 24043049.

It is an arithmetic number, because the mean of its divisors is an integer number (3161606175).

Almost surely, 2^111621100104 is an apocalyptic number.

It is an amenable number.

111621100104 is an abundant number, since it is smaller than the sum of its proper divisors (191893092696).

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

111621100104 is a wasteful number, since it uses less digits than its factorization.

111621100104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915 (or 5908 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111621100104 its reverse (401001126111), we get a palindrome (512622226215).

The spelling of 111621100104 in words is "one hundred eleven billion, six hundred twenty-one million, one hundred thousand, one hundred four".