111223130100 has 72 divisors (see below), whose sum is σ = 322682763648. Its totient is φ = 29578656000.

The previous prime is 111223130087. The next prime is 111223130143. The reversal of 111223130100 is 1031322111.

It is a happy number.

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 111223130100.

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, 395001 + ... + 615200.

Almost surely, 2^111223130100 is an apocalyptic number.

111223130100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111223130100 is an abundant number, since it is smaller than the sum of its proper divisors (211459633548).

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

111223130100 is a wasteful number, since it uses less digits than its factorization.

111223130100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010585 (or 1010578 counting only the distinct ones).

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

Adding to 111223130100 its reverse (1031322111), we get a palindrome (112254452211).

The spelling of 111223130100 in words is "one hundred eleven billion, two hundred twenty-three million, one hundred thirty thousand, one hundred".