1115200000 has 240 divisors, whose sum is σ = 3020853528. Its totient is φ = 409600000.

The previous prime is 1115199961. The next prime is 1115200013. The reversal of 1115200000 is 25111.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 664402176 + 450797824 = 25776^2 + 21232^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 1115200000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27199980 + ... + 27200020.

Almost surely, 2^1115200000 is an apocalyptic number.

1115200000 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 1115200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510426764).

1115200000 is an abundant number, since it is smaller than the sum of its proper divisors (1905653528).

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

1115200000 is an frugal number, since it uses more digits than its factorization.

1115200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1115200000 is about 33394.6103435869. The cubic root of 1115200000 is about 1037.0131261809.

Adding to 1115200000 its reverse (25111), we get a palindrome (1115225111).

The spelling of 1115200000 in words is "one billion, one hundred fifteen million, two hundred thousand".