201322123013 has 16 divisors (see below), whose sum is σ = 220053901824. Its totient is φ = 182662331760.

The previous prime is 201322122997. The next prime is 201322123031. The reversal of 201322123013 is 310321223102.

It is a cyclic number.

It is not a de Polignac number, because 201322123013 - 2⁴ = 201322122997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201322123813) 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, 12744506 + ... + 12760292.

It is an arithmetic number, because the mean of its divisors is an integer number (13753368864).

Almost surely, 2^201322123013 is an apocalyptic number.

It is an amenable number.

201322123013 is a deficient number, since it is larger than the sum of its proper divisors (18731778811).

201322123013 is a wasteful number, since it uses less digits than its factorization.

201322123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201322123013 its reverse (310321223102), we get a palindrome (511643346115).

The spelling of 201322123013 in words is "two hundred one billion, three hundred twenty-two million, one hundred twenty-three thousand, thirteen".