311322122201 has 4 divisors (see below), whose sum is σ = 316598768400. Its totient is φ = 306045476004.

The previous prime is 311322122183. The next prime is 311322122257. The reversal of 311322122201 is 102221223113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102221223113 = 1787 ⋅57202699.

It is a cyclic number.

It is not a de Polignac number, because 311322122201 - 2¹⁴ = 311322105817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311322122291) 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, 2638323011 + ... + 2638323128.

It is an arithmetic number, because the mean of its divisors is an integer number (79149692100).

Almost surely, 2^311322122201 is an apocalyptic number.

It is an amenable number.

311322122201 is a deficient number, since it is larger than the sum of its proper divisors (5276646199).

311322122201 is an equidigital number, since it uses as much as digits as its factorization.

311322122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276646198.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 311322122201 its reverse (102221223113), we get a palindrome (413543345314).

The spelling of 311322122201 in words is "three hundred eleven billion, three hundred twenty-two million, one hundred twenty-two thousand, two hundred one".