201323002231 has 16 divisors (see below), whose sum is σ = 230003631648. Its totient is φ = 174569241600.

The previous prime is 201323002217. The next prime is 201323002249. The reversal of 201323002231 is 132200323102.

It is not a de Polignac number, because 201323002231 - 2¹⁹ = 201322477943 is a prime.

It is a super-2 number, since 2×201323002231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201323002199 and 201323002208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201323006231) 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, 759105 + ... + 989386.

It is an arithmetic number, because the mean of its divisors is an integer number (14375226978).

Almost surely, 2^201323002231 is an apocalyptic number.

201323002231 is a deficient number, since it is larger than the sum of its proper divisors (28680629417).

201323002231 is a wasteful number, since it uses less digits than its factorization.

201323002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749042.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201323002231 its reverse (132200323102), we get a palindrome (333523325333).

The spelling of 201323002231 in words is "two hundred one billion, three hundred twenty-three million, two thousand, two hundred thirty-one".