1003113100 has 72 divisors (see below), whose sum is σ = 2403471168. Its totient is φ = 360340800.

The previous prime is 1003113077. The next prime is 1003113107. The reversal of 1003113100 is 13113001.

1003113100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1003113100² = 2012471782783220000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1003113107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85807 + ... + 96793.

It is an arithmetic number, because the mean of its divisors is an integer number (33381544).

Almost surely, 2^1003113100 is an apocalyptic number.

1003113100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003113100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201735584).

1003113100 is an abundant number, since it is smaller than the sum of its proper divisors (1400358068).

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

1003113100 is a wasteful number, since it uses less digits than its factorization.

1003113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095 (or 11088 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1003113100 is about 31671.9607855276. The cubic root of 1003113100 is about 1001.0366250372.

Adding to 1003113100 its reverse (13113001), we get a palindrome (1016226101).

Subtracting from 1003113100 its reverse (13113001), we obtain a palindrome (990000099).

The spelling of 1003113100 in words is "one billion, three million, one hundred thirteen thousand, one hundred".