201310121311 has 16 divisors (see below), whose sum is σ = 223811515648. Its totient is φ = 179812224000.

The previous prime is 201310121281. The next prime is 201310121377. The reversal of 201310121311 is 113121013102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201310121311 - 2⁹ = 201310120799 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 (201310121611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5436961 + ... + 5473861.

It is an arithmetic number, because the mean of its divisors is an integer number (13988219728).

Almost surely, 2^201310121311 is an apocalyptic number.

201310121311 is a deficient number, since it is larger than the sum of its proper divisors (22501394337).

201310121311 is a wasteful number, since it uses less digits than its factorization.

201310121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50482.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 201310121311 its reverse (113121013102), we get a palindrome (314431134413).

The spelling of 201310121311 in words is "two hundred one billion, three hundred ten million, one hundred twenty-one thousand, three hundred eleven".