113203013100 has 432 divisors, whose sum is σ = 354623115168. Its totient is φ = 27855360000.

The previous prime is 113203013087. The next prime is 113203013123. The reversal of 113203013100 is 1310302311.

It is a super-2 number, since 2×113203013100² (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 113203013100.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 721038222 + ... + 721038378.

Almost surely, 2^113203013100 is an apocalyptic number.

113203013100 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 113203013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177311557584).

113203013100 is an abundant number, since it is smaller than the sum of its proper divisors (241420102068).

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

113203013100 is a wasteful number, since it uses less digits than its factorization.

113203013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 113203013100 its reverse (1310302311), we get a palindrome (114513315411).

The spelling of 113203013100 in words is "one hundred thirteen billion, two hundred three million, thirteen thousand, one hundred".