201331322013 has 16 divisors (see below), whose sum is σ = 272807251200. Its totient is φ = 132050231040.

The previous prime is 201331321999. The next prime is 201331322021. The reversal of 201331322013 is 310223133102.

It is not a de Polignac number, because 201331322013 - 2⁶ = 201331321949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201331322083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444968 + ... + 1578161.

It is an arithmetic number, because the mean of its divisors is an integer number (17050453200).

Almost surely, 2^201331322013 is an apocalyptic number.

It is an amenable number.

201331322013 is a deficient number, since it is larger than the sum of its proper divisors (71475929187).

201331322013 is a wasteful number, since it uses less digits than its factorization.

201331322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023492.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 201331322013 its reverse (310223133102), we get a palindrome (511554455115).

The spelling of 201331322013 in words is "two hundred one billion, three hundred thirty-one million, three hundred twenty-two thousand, thirteen".