1115203115 has 48 divisors (see below), whose sum is σ = 1491786720. Its totient is φ = 799718400.

The previous prime is 1115203099. The next prime is 1115203123. The reversal of 1115203115 is 5113025111.

It is a happy number.

1115203115 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1115203115 - 2⁴ = 1115203099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6230096 + ... + 6230274.

It is an arithmetic number, because the mean of its divisors is an integer number (31078890).

Almost surely, 2^1115203115 is an apocalyptic number.

1115203115 is a deficient number, since it is larger than the sum of its proper divisors (376583605).

1115203115 is a wasteful number, since it uses less digits than its factorization.

1115203115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1115203115 is about 33394.6569828169. The cubic root of 1115203115 is about 1037.0140917156.

Adding to 1115203115 its reverse (5113025111), we get a palindrome (6228228226).

The spelling of 1115203115 in words is "one billion, one hundred fifteen million, two hundred three thousand, one hundred fifteen".