1113101440 has 128 divisors (see below), whose sum is σ = 2971235520. Its totient is φ = 395243520.

The previous prime is 1113101317. The next prime is 1113101441. The reversal of 1113101440 is 441013111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1113101441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300882 + ... + 304558.

Almost surely, 2^1113101440 is an apocalyptic number.

1113101440 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 1113101440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1485617760).

1113101440 is an abundant number, since it is smaller than the sum of its proper divisors (1858134080).

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

1113101440 is a wasteful number, since it uses less digits than its factorization.

1113101440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750 (or 3738 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1113101440 is about 33363.1749088722. The cubic root of 1113101440 is about 1036.3622412099.

Adding to 1113101440 its reverse (441013111), we get a palindrome (1554114551).

The spelling of 1113101440 in words is "one billion, one hundred thirteen million, one hundred one thousand, four hundred forty".