1123513115 has 8 divisors (see below), whose sum is σ = 1365282240. Its totient is φ = 887432832.

The previous prime is 1123513109. The next prime is 1123513123. The reversal of 1123513115 is 5113153211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123513115 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421774 + ... + 1422563.

It is an arithmetic number, because the mean of its divisors is an integer number (170660280).

Almost surely, 2^1123513115 is an apocalyptic number.

1123513115 is a deficient number, since it is larger than the sum of its proper divisors (241769125).

1123513115 is an equidigital number, since it uses as much as digits as its factorization.

1123513115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844421.

The product of its digits is 450, while the sum is 23.

The square root of 1123513115 is about 33518.8471609630. The cubic root of 1123513115 is about 1039.5835101902.

Adding to 1123513115 its reverse (5113153211), we get a palindrome (6236666326).

The spelling of 1123513115 in words is "one billion, one hundred twenty-three million, five hundred thirteen thousand, one hundred fifteen".