13020201 has 6 divisors (see below), whose sum is σ = 18806970. Its totient is φ = 8680128.

The previous prime is 13020197. The next prime is 13020209. The reversal of 13020201 is 10202031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 488601 = 3540^2 + 699^2 .

It is not a de Polignac number, because 13020201 - 2² = 13020197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1446689 = 13020201 / (1 + 3 + 0 + 2 + 0 + 2 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (13020209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723336 + ... + 723353.

It is an arithmetic number, because the mean of its divisors is an integer number (3134495).

Almost surely, 2^13020201 is an apocalyptic number.

It is an amenable number.

13020201 is a deficient number, since it is larger than the sum of its proper divisors (5786769).

13020201 is a wasteful number, since it uses less digits than its factorization.

13020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446695 (or 1446692 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 13020201 is about 3608.3515626945. The cubic root of 13020201 is about 235.2551988485.

Adding to 13020201 its reverse (10202031), we get a palindrome (23222232).

The spelling of 13020201 in words is "thirteen million, twenty thousand, two hundred one".