1115503113 has 8 divisors (see below), whose sum is σ = 1523614176. Its totient is φ = 725530400.

The previous prime is 1115503069. The next prime is 1115503153. The reversal of 1115503113 is 3113055111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115503113 - 2²⁸ = 847067657 is a prime.

It is a super-2 number, since 2×1115503113² = 2488694390225381538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1115503113.

It is not an unprimeable number, because it can be changed into a prime (1115503153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4534443 + ... + 4534688.

It is an arithmetic number, because the mean of its divisors is an integer number (190451772).

Almost surely, 2^1115503113 is an apocalyptic number.

It is an amenable number.

1115503113 is a deficient number, since it is larger than the sum of its proper divisors (408111063).

1115503113 is an equidigital number, since it uses as much as digits as its factorization.

1115503113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9069175.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1115503113 is about 33399.1483873466. The cubic root of 1115503113 is about 1037.1070715675.

Adding to 1115503113 its reverse (3113055111), we get a palindrome (4228558224).

The spelling of 1115503113 in words is "one billion, one hundred fifteen million, five hundred three thousand, one hundred thirteen".