1103612113 has 4 divisors (see below), whose sum is σ = 1103692468. Its totient is φ = 1103531760.

The previous prime is 1103612077. The next prime is 1103612119. The reversal of 1103612113 is 3112163011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 657050689 + 446561424 = 25633^2 + 21132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103612113 - 2⁹ = 1103611601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103612119) 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, 13806 + ... + 48967.

It is an arithmetic number, because the mean of its divisors is an integer number (275923117).

Almost surely, 2^1103612113 is an apocalyptic number.

It is an amenable number.

1103612113 is a deficient number, since it is larger than the sum of its proper divisors (80355).

1103612113 is an equidigital number, since it uses as much as digits as its factorization.

1103612113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80354.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1103612113 is about 33220.6579254536. The cubic root of 1103612113 is about 1033.4087937840.

Adding to 1103612113 its reverse (3112163011), we get a palindrome (4215775124).

The spelling of 1103612113 in words is "one billion, one hundred three million, six hundred twelve thousand, one hundred thirteen".