201322123231 has 8 divisors (see below), whose sum is σ = 206686467504. Its totient is φ = 196015772160.

The previous prime is 201322123217. The next prime is 201322123363. The reversal of 201322123231 is 132321223102.

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

It is a cyclic number.

It is not a de Polignac number, because 201322123231 - 2¹¹ = 201322121183 is a prime.

It is a super-2 number, since 2×201322123231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201322123031) 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, 14491266 + ... + 14505151.

It is an arithmetic number, because the mean of its divisors is an integer number (25835808438).

Almost surely, 2^201322123231 is an apocalyptic number.

201322123231 is a deficient number, since it is larger than the sum of its proper divisors (5364344273).

201322123231 is a wasteful number, since it uses less digits than its factorization.

201322123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28996601.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 201322123231 its reverse (132321223102), we get a palindrome (333643346333).

The spelling of 201322123231 in words is "two hundred one billion, three hundred twenty-two million, one hundred twenty-three thousand, two hundred thirty-one".