1113305240 has 16 divisors (see below), whose sum is σ = 2504936880. Its totient is φ = 445322080.

The previous prime is 1113305191. The next prime is 1113305243. The reversal of 1113305240 is 425033111.

It is a super-2 number, since 2×1113305240² = 2478897114822915200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113305243) 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 3 ways as a sum of consecutive naturals, for example, 13916276 + ... + 13916355.

It is an arithmetic number, because the mean of its divisors is an integer number (156558555).

Almost surely, 2^1113305240 is an apocalyptic number.

1113305240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113305240 is an abundant number, since it is smaller than the sum of its proper divisors (1391631640).

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

1113305240 is a wasteful number, since it uses less digits than its factorization.

1113305240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27832642 (or 27832638 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1113305240 is about 33366.2290347591. The cubic root of 1113305240 is about 1036.4254872382.

Adding to 1113305240 its reverse (425033111), we get a palindrome (1538338351).

The spelling of 1113305240 in words is "one billion, one hundred thirteen million, three hundred five thousand, two hundred forty".