13138384811 has 4 divisors (see below), whose sum is σ = 13138776072. Its totient is φ = 13137993552.

The previous prime is 13138384807. The next prime is 13138384849. The reversal of 13138384811 is 11848383131.

It is a happy number.

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 13138384811 - 2² = 13138384807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13138384211) 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, 139985 + ... + 214178.

It is an arithmetic number, because the mean of its divisors is an integer number (3284694018).

Almost surely, 2^13138384811 is an apocalyptic number.

13138384811 is a deficient number, since it is larger than the sum of its proper divisors (391261).

13138384811 is an equidigital number, since it uses as much as digits as its factorization.

13138384811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391260.

The product of its digits is 55296, while the sum is 41.

The spelling of 13138384811 in words is "thirteen billion, one hundred thirty-eight million, three hundred eighty-four thousand, eight hundred eleven".