13204542511 has 4 divisors (see below), whose sum is σ = 13485490272. Its totient is φ = 12923594752.

The previous prime is 13204542509. The next prime is 13204542517. The reversal of 13204542511 is 11524540231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13204542511 - 2¹ = 13204542509 is a prime.

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 13204542511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204542517) 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, 140473810 + ... + 140473903.

It is an arithmetic number, because the mean of its divisors is an integer number (3371372568).

Almost surely, 2^13204542511 is an apocalyptic number.

13204542511 is a deficient number, since it is larger than the sum of its proper divisors (280947761).

13204542511 is an equidigital number, since it uses as much as digits as its factorization.

13204542511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280947760.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 13204542511 in words is "thirteen billion, two hundred four million, five hundred forty-two thousand, five hundred eleven".