1113315500 has 96 divisors (see below), whose sum is σ = 2690827776. Its totient is φ = 399000000.

The previous prime is 1113315473. The next prime is 1113315503. The reversal of 1113315500 is 55133111.

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

It is not an unprimeable number, because it can be changed into a prime (1113315503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389075 + ... + 391925.

It is an arithmetic number, because the mean of its divisors is an integer number (28029456).

Almost surely, 2^1113315500 is an apocalyptic number.

1113315500 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 1113315500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345413888).

1113315500 is an abundant number, since it is smaller than the sum of its proper divisors (1577512276).

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

1113315500 is a wasteful number, since it uses less digits than its factorization.

1113315500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1113315500 is about 33366.3827826751. The cubic root of 1113315500 is about 1036.4286710589.

Adding to 1113315500 its reverse (55133111), we get a palindrome (1168448611).

It can be divided in two parts, 1113 and 315500, that added together give a palindrome (316613).

The spelling of 1113315500 in words is "one billion, one hundred thirteen million, three hundred fifteen thousand, five hundred".