1113135215 has 4 divisors (see below), whose sum is σ = 1335762264. Its totient is φ = 890508168.

The previous prime is 1113135187. The next prime is 1113135229. The reversal of 1113135215 is 5125313111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1113135215 - 2¹² = 1113131119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111313517 + ... + 111313526.

It is an arithmetic number, because the mean of its divisors is an integer number (333940566).

Almost surely, 2^1113135215 is an apocalyptic number.

1113135215 is a deficient number, since it is larger than the sum of its proper divisors (222627049).

1113135215 is an equidigital number, since it uses as much as digits as its factorization.

1113135215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222627048.

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

The square root of 1113135215 is about 33363.6810768836. The cubic root of 1113135215 is about 1036.3727232676.

Adding to 1113135215 its reverse (5125313111), we get a palindrome (6238448326).

The spelling of 1113135215 in words is "one billion, one hundred thirteen million, one hundred thirty-five thousand, two hundred fifteen".