1103511313 has 4 divisors (see below), whose sum is σ = 1113635380. Its totient is φ = 1093387248.

The previous prime is 1103511229. The next prime is 1103511329. The reversal of 1103511313 is 3131153011.

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 498941569 + 604569744 = 22337^2 + 24588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103511313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103511613) 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, 5061870 + ... + 5062087.

It is an arithmetic number, because the mean of its divisors is an integer number (278408845).

Almost surely, 2^1103511313 is an apocalyptic number.

It is an amenable number.

1103511313 is a deficient number, since it is larger than the sum of its proper divisors (10124067).

1103511313 is a wasteful number, since it uses less digits than its factorization.

1103511313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124066.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 1103511313 is about 33219.1407625182. The cubic root of 1103511313 is about 1033.3773301998.

Adding to 1103511313 its reverse (3131153011), we get a palindrome (4234664324).

The spelling of 1103511313 in words is "one billion, one hundred three million, five hundred eleven thousand, three hundred thirteen".