311201303211 has 8 divisors (see below), whose sum is σ = 461038967760. Its totient is φ = 207467535456.

The previous prime is 311201303173. The next prime is 311201303243. The reversal of 311201303211 is 112303102113.

311201303211 is a `hidden beast` number, since 31 + 120 + 1 + 303 + 211 = 666.

It is not a de Polignac number, because 311201303211 - 2¹⁰ = 311201302187 is a prime.

It is a super-2 number, since 2×311201303211² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311201303261) 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 7 ways as a sum of consecutive naturals, for example, 5762987070 + ... + 5762987123.

It is an arithmetic number, because the mean of its divisors is an integer number (57629870970).

Almost surely, 2^311201303211 is an apocalyptic number.

311201303211 is a deficient number, since it is larger than the sum of its proper divisors (149837664549).

311201303211 is a wasteful number, since it uses less digits than its factorization.

311201303211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11525974202 (or 11525974196 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 311201303211 its reverse (112303102113), we get a palindrome (423504405324).

It can be divided in two parts, 31120 and 1303211, that added together give a palindrome (1334331).

The spelling of 311201303211 in words is "three hundred eleven billion, two hundred one million, three hundred three thousand, two hundred eleven".