311320033201 has 4 divisors (see below), whose sum is σ = 311361924132. Its totient is φ = 311278142272.

The previous prime is 311320033151. The next prime is 311320033207. The reversal of 311320033201 is 102330023113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102330023113 = 22291 ⋅4590643.

It can be written as a sum of positive squares in 2 ways, for example, as 107896482576 + 203423550625 = 328476^2 + 451025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311320033201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311320033207) 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, 20934316 + ... + 20949181.

It is an arithmetic number, because the mean of its divisors is an integer number (77840481033).

Almost surely, 2^311320033201 is an apocalyptic number.

It is an amenable number.

311320033201 is a deficient number, since it is larger than the sum of its proper divisors (41890931).

311320033201 is an equidigital number, since it uses as much as digits as its factorization.

311320033201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41890930.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311320033201 its reverse (102330023113), we get a palindrome (413650056314).

The spelling of 311320033201 in words is "three hundred eleven billion, three hundred twenty million, thirty-three thousand, two hundred one".