1113032100 has 72 divisors (see below), whose sum is σ = 3360409920. Its totient is φ = 283902080.

The previous prime is 1113032099. The next prime is 1113032101. The reversal of 1113032100 is 12303111.

It is an interprime number because it is at equal distance from previous prime (1113032099) and next prime (1113032101).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1113032101) by changing a digit.

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, 73755 + ... + 87554.

It is an arithmetic number, because the mean of its divisors is an integer number (46672360).

Almost surely, 2^1113032100 is an apocalyptic number.

1113032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113032100 is an abundant number, since it is smaller than the sum of its proper divisors (2247377820).

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

1113032100 is a wasteful number, since it uses less digits than its factorization.

1113032100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161349 (or 161342 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1113032100 is about 33362.1357230019. The cubic root of 1113032100 is about 1036.3407209041.

Adding to 1113032100 its reverse (12303111), we get a palindrome (1125335211).

The spelling of 1113032100 in words is "one billion, one hundred thirteen million, thirty-two thousand, one hundred".