201323132231 has 16 divisors (see below), whose sum is σ = 217703076864. Its totient is φ = 185072256864.

The previous prime is 201323132191. The next prime is 201323132267. The reversal of 201323132231 is 132231323102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201323132231 is a prime.

It is a super-2 number, since 2×201323132231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201323132197 and 201323132206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201323135231) 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, 3439496 + ... + 3497538.

It is an arithmetic number, because the mean of its divisors is an integer number (13606442304).

Almost surely, 2^201323132231 is an apocalyptic number.

201323132231 is a deficient number, since it is larger than the sum of its proper divisors (16379944633).

201323132231 is a wasteful number, since it uses less digits than its factorization.

201323132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59150.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 201323132231 its reverse (132231323102), we get a palindrome (333554455333).

The spelling of 201323132231 in words is "two hundred one billion, three hundred twenty-three million, one hundred thirty-two thousand, two hundred thirty-one".