1112400100 has 72 divisors (see below), whose sum is σ = 2921063040. Its totient is φ = 358955520.

The previous prime is 1112400059. The next prime is 1112400119. The reversal of 1112400100 is 10042111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34840 + ... + 58639.

It is an arithmetic number, because the mean of its divisors is an integer number (40570320).

Almost surely, 2^1112400100 is an apocalyptic number.

1112400100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112400100 is an abundant number, since it is smaller than the sum of its proper divisors (1808662940).

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

1112400100 is a wasteful number, since it uses less digits than its factorization.

1112400100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93517 (or 93510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1112400100 is about 33352.6625623802. The cubic root of 1112400100 is about 1036.1445326893.

Adding to 1112400100 its reverse (10042111), we get a palindrome (1122442211).

The spelling of 1112400100 in words is "one billion, one hundred twelve million, four hundred thousand, one hundred".