1115223113 has 4 divisors (see below), whose sum is σ = 1126265028. Its totient is φ = 1104181200.

The previous prime is 1115223077. The next prime is 1115223139. The reversal of 1115223113 is 3113225111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 460016704 + 655206409 = 21448^2 + 25597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115223113 - 2¹⁸ = 1114960969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115223143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5520806 + ... + 5521007.

It is an arithmetic number, because the mean of its divisors is an integer number (281566257).

Almost surely, 2^1115223113 is an apocalyptic number.

It is an amenable number.

1115223113 is a deficient number, since it is larger than the sum of its proper divisors (11041915).

1115223113 is a wasteful number, since it uses less digits than its factorization.

1115223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041914.

The product of its digits is 180, while the sum is 20.

The square root of 1115223113 is about 33394.9564006303. The cubic root of 1115223113 is about 1037.0202903125.

Adding to 1115223113 its reverse (3113225111), we get a palindrome (4228448224).

The spelling of 1115223113 in words is "one billion, one hundred fifteen million, two hundred twenty-three thousand, one hundred thirteen".