311203320201 has 12 divisors (see below), whose sum is σ = 449872965360. Its totient is φ = 207304083960.

The previous prime is 311203320193. The next prime is 311203320229. The reversal of 311203320201 is 102023302113.

311203320201 is a `hidden beast` number, since 311 + 2 + 0 + 332 + 0 + 20 + 1 = 666.

It is not a de Polignac number, because 311203320201 - 2³ = 311203320193 is a prime.

It is a super-2 number, since 2×311203320201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311203320301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13721055 + ... + 13743716.

It is an arithmetic number, because the mean of its divisors is an integer number (37489413780).

Almost surely, 2^311203320201 is an apocalyptic number.

It is an amenable number.

311203320201 is a deficient number, since it is larger than the sum of its proper divisors (138669645159).

311203320201 is a wasteful number, since it uses less digits than its factorization.

311203320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27466036 (or 27466033 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 311203320201 its reverse (102023302113), we get a palindrome (413226622314).

The spelling of 311203320201 in words is "three hundred eleven billion, two hundred three million, three hundred twenty thousand, two hundred one".