201312012311 has 16 divisors (see below), whose sum is σ = 219594408960. Its totient is φ = 183846205440.

The previous prime is 201312012299. The next prime is 201312012323. The reversal of 201312012311 is 113210213102.

201312012311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201312012299) and next prime (201312012323).

It is a cyclic number.

It is not a de Polignac number, because 201312012311 - 2¹⁰ = 201312011287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201312012311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513581 + ... + 816326.

It is an arithmetic number, because the mean of its divisors is an integer number (13724650560).

Almost surely, 2^201312012311 is an apocalyptic number.

201312012311 is a deficient number, since it is larger than the sum of its proper divisors (18282396649).

201312012311 is a wasteful number, since it uses less digits than its factorization.

201312012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330214.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201312012311 its reverse (113210213102), we get a palindrome (314522225413).

The spelling of 201312012311 in words is "two hundred one billion, three hundred twelve million, twelve thousand, three hundred eleven".