111223103100 has 36 divisors (see below), whose sum is σ = 321805512504. Its totient is φ = 29659494080.

The previous prime is 111223103083. The next prime is 111223103171. The reversal of 111223103100 is 1301322111.

It is a happy number.

It is a super-2 number, since 2×111223103100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111223103100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185371539 + ... + 185372138.

It is an arithmetic number, because the mean of its divisors is an integer number (8939042014).

Almost surely, 2^111223103100 is an apocalyptic number.

111223103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111223103100 is an abundant number, since it is smaller than the sum of its proper divisors (210582409404).

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

111223103100 is a wasteful number, since it uses less digits than its factorization.

111223103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370743694 (or 370743687 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111223103100 its reverse (1301322111), we get a palindrome (112524425211).

The spelling of 111223103100 in words is "one hundred eleven billion, two hundred twenty-three million, one hundred three thousand, one hundred".