13523320511 has 8 divisors (see below), whose sum is σ = 14243174784. Its totient is φ = 12814456600.

The previous prime is 13523320507. The next prime is 13523320537. The reversal of 13523320511 is 11502332531.

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 13523320511 - 2² = 13523320507 is a prime.

It is a super-2 number, since 2×13523320511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13523320501) 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, 2745065 + ... + 2749986.

It is an arithmetic number, because the mean of its divisors is an integer number (1780396848).

Almost surely, 2^13523320511 is an apocalyptic number.

13523320511 is a deficient number, since it is larger than the sum of its proper divisors (719854273).

13523320511 is a wasteful number, since it uses less digits than its factorization.

13523320511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495181.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 13523320511 in words is "thirteen billion, five hundred twenty-three million, three hundred twenty thousand, five hundred eleven".