13113511 has 8 divisors (see below), whose sum is σ = 13916880. Its totient is φ = 12313728.

The previous prime is 13113509. The next prime is 13113521. The reversal of 13113511 is 11531131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13113511 - 2¹ = 13113509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12360 + ... + 13378.

It is an arithmetic number, because the mean of its divisors is an integer number (1739610).

Almost surely, 2^13113511 is an apocalyptic number.

13113511 is a deficient number, since it is larger than the sum of its proper divisors (803369).

13113511 is a wasteful number, since it uses less digits than its factorization.

13113511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793.

The product of its digits is 45, while the sum is 16.

The square root of 13113511 is about 3621.2582067563. The cubic root of 13113511 is about 235.8158515123.

Adding to 13113511 its reverse (11531131), we get a palindrome (24644642).

The spelling of 13113511 in words is "thirteen million, one hundred thirteen thousand, five hundred eleven".