201311302201 has 4 divisors (see below), whose sum is σ = 206221334004. Its totient is φ = 196401270400.

The previous prime is 201311302193. The next prime is 201311302373. The reversal of 201311302201 is 102203113102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22402605625 + 178908696576 = 149675^2 + 422976^2 .

It is a cyclic number.

It is not a de Polignac number, because 201311302201 - 2³ = 201311302193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201311302001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2455015840 + ... + 2455015921.

It is an arithmetic number, because the mean of its divisors is an integer number (51555333501).

Almost surely, 2^201311302201 is an apocalyptic number.

It is an amenable number.

201311302201 is a deficient number, since it is larger than the sum of its proper divisors (4910031803).

201311302201 is an equidigital number, since it uses as much as digits as its factorization.

201311302201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910031802.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201311302201 its reverse (102203113102), we get a palindrome (303514415303).

The spelling of 201311302201 in words is "two hundred one billion, three hundred eleven million, three hundred two thousand, two hundred one".