13005947201 has 4 divisors (see below), whose sum is σ = 14006404692. Its totient is φ = 12005489712.

The previous prime is 13005947183. The next prime is 13005947209. The reversal of 13005947201 is 10274950031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10274950031 = 31 ⋅331450001.

It can be written as a sum of positive squares in 2 ways, for example, as 2585620801 + 10420326400 = 50849^2 + 102080^2 .

It is a cyclic number.

It is not a de Polignac number, because 13005947201 - 2¹⁸ = 13005685057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13005947209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500228726 + ... + 500228751.

It is an arithmetic number, because the mean of its divisors is an integer number (3501601173).

Almost surely, 2^13005947201 is an apocalyptic number.

It is an amenable number.

13005947201 is a deficient number, since it is larger than the sum of its proper divisors (1000457491).

13005947201 is a wasteful number, since it uses less digits than its factorization.

13005947201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000457490.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 13005947201 in words is "thirteen billion, five million, nine hundred forty-seven thousand, two hundred one".