201331023231313 has 8 divisors (see below), whose sum is σ = 202061362692032. Its totient is φ = 200600709042096.

The previous prime is 201331023231293. The next prime is 201331023231323. The reversal of 201331023231313 is 313132320133102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201331023231313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201331023231323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9718156 + ... + 22295842.

It is an arithmetic number, because the mean of its divisors is an integer number (25257670336504).

Almost surely, 2^{201331023231313} is an apocalyptic number.

It is an amenable number.

201331023231313 is a deficient number, since it is larger than the sum of its proper divisors (730339460719).

201331023231313 is a wasteful number, since it uses less digits than its factorization.

201331023231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12635751.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 201331023231313 its reverse (313132320133102), we get a palindrome (514463343364415).

The spelling of 201331023231313 in words is "two hundred one trillion, three hundred thirty-one billion, twenty-three million, two hundred thirty-one thousand, three hundred thirteen".