11109613 has 2 divisors, whose sum is σ = 11109614. Its totient is φ = 11109612.

The previous prime is 11109611. The next prime is 11109617. The reversal of 11109613 is 31690111.

It is a happy number.

11109613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11009124 + 100489 = 3318^2 + 317^2 .

It is an emirp because it is prime and its reverse (31690111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11109613 - 2¹ = 11109611 is a prime.

Together with 11109611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11109611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5554806 + 5554807.

It is an arithmetic number, because the mean of its divisors is an integer number (5554807).

Almost surely, 2^11109613 is an apocalyptic number.

It is an amenable number.

11109613 is a deficient number, since it is larger than the sum of its proper divisors (1).

11109613 is an equidigital number, since it uses as much as digits as its factorization.

11109613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 11109613 is about 3333.1086090915. The cubic root of 11109613 is about 223.1342873939.

Adding to 11109613 its reverse (31690111), we get a palindrome (42799724).

The spelling of 11109613 in words is "eleven million, one hundred nine thousand, six hundred thirteen".