13115325511 has 8 divisors (see below), whose sum is σ = 13216741344. Its totient is φ = 13013992320.

The previous prime is 13115325499. The next prime is 13115325539. The reversal of 13115325511 is 11552351131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13115325511 is a prime.

It is a super-2 number, since 2×13115325511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13115325511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115325211) 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, 319446 + ... + 358156.

It is an arithmetic number, because the mean of its divisors is an integer number (1652092668).

Almost surely, 2^13115325511 is an apocalyptic number.

13115325511 is a deficient number, since it is larger than the sum of its proper divisors (101415833).

13115325511 is a wasteful number, since it uses less digits than its factorization.

13115325511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41321.

The product of its digits is 2250, while the sum is 28.

Adding to 13115325511 its reverse (11552351131), we get a palindrome (24667676642).

The spelling of 13115325511 in words is "thirteen billion, one hundred fifteen million, three hundred twenty-five thousand, five hundred eleven".