1113303100 has 288 divisors, whose sum is σ = 3219793920. Its totient is φ = 324311040.

The previous prime is 1113303097. The next prime is 1113303137. The reversal of 1113303100 is 13033111.

It is a happy number.

It is a super-2 number, since 2×1113303100² = 2478887584939220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8126232 + ... + 8126368.

It is an arithmetic number, because the mean of its divisors is an integer number (11179840).

Almost surely, 2^1113303100 is an apocalyptic number.

1113303100 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 1113303100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609896960).

1113303100 is an abundant number, since it is smaller than the sum of its proper divisors (2106490820).

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

1113303100 is a wasteful number, since it uses less digits than its factorization.

1113303100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1113303100 is about 33366.1969663910. The cubic root of 1113303100 is about 1036.4248231640.

Adding to 1113303100 its reverse (13033111), we get a palindrome (1126336211).

The spelling of 1113303100 in words is "one billion, one hundred thirteen million, three hundred three thousand, one hundred".