20131313201311 has 16 divisors (see below), whose sum is σ = 22841725183200. Its totient is φ = 17588662852608.

The previous prime is 20131313201291. The next prime is 20131313201327. The reversal of 20131313201311 is 11310231313102.

It is a cyclic number.

It is not a de Polignac number, because 20131313201311 - 2³¹ = 20129165717663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131313201011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36877306 + ... + 37419223.

It is an arithmetic number, because the mean of its divisors is an integer number (1427607823950).

Almost surely, 2^{20131313201311} is an apocalyptic number.

20131313201311 is a deficient number, since it is larger than the sum of its proper divisors (2710411981889).

20131313201311 is a wasteful number, since it uses less digits than its factorization.

20131313201311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74297658.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20131313201311 its reverse (11310231313102), we get a palindrome (31441544514413).

The spelling of 20131313201311 in words is "twenty trillion, one hundred thirty-one billion, three hundred thirteen million, two hundred one thousand, three hundred eleven".