311123222201 has 4 divisors (see below), whose sum is σ = 339407151504. Its totient is φ = 282839292900.

The previous prime is 311123222197. The next prime is 311123222213. The reversal of 311123222201 is 102222321113.

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.

It is a cyclic number.

It is not a de Polignac number, because 311123222201 - 2² = 311123222197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311123222701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14141964635 + ... + 14141964656.

It is an arithmetic number, because the mean of its divisors is an integer number (84851787876).

Almost surely, 2^311123222201 is an apocalyptic number.

It is an amenable number.

311123222201 is a deficient number, since it is larger than the sum of its proper divisors (28283929303).

311123222201 is a wasteful number, since it uses less digits than its factorization.

311123222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28283929302.

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

Adding to 311123222201 its reverse (102222321113), we get a palindrome (413345543314).

The spelling of 311123222201 in words is "three hundred eleven billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred one".