13211124005 has 4 divisors (see below), whose sum is σ = 15853348812. Its totient is φ = 10568899200.

The previous prime is 13211123993. The next prime is 13211124037. The reversal of 13211124005 is 50042111231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6674563204 + 6536560801 = 81698^2 + 80849^2 .

It is not a de Polignac number, because 13211124005 - 2⁸ = 13211123749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321112396 + ... + 1321112405.

It is an arithmetic number, because the mean of its divisors is an integer number (3963337203).

Almost surely, 2^13211124005 is an apocalyptic number.

It is an amenable number.

13211124005 is a deficient number, since it is larger than the sum of its proper divisors (2642224807).

13211124005 is an equidigital number, since it uses as much as digits as its factorization.

13211124005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642224806.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 13211124005 its reverse (50042111231), we get a palindrome (63253235236).

The spelling of 13211124005 in words is "thirteen billion, two hundred eleven million, one hundred twenty-four thousand, five".