311424211 has 4 divisors (see below), whose sum is σ = 355913392. Its totient is φ = 266935032.

The previous prime is 311424203. The next prime is 311424277. The reversal of 311424211 is 112424113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112424113 = 1607 ⋅69959.

It is not a de Polignac number, because 311424211 - 2³ = 311424203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311421211) 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 3 ways as a sum of consecutive naturals, for example, 22244580 + ... + 22244593.

It is an arithmetic number, because the mean of its divisors is an integer number (88978348).

Almost surely, 2^311424211 is an apocalyptic number.

311424211 is a deficient number, since it is larger than the sum of its proper divisors (44489181).

311424211 is an equidigital number, since it uses as much as digits as its factorization.

311424211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44489180.

The product of its digits is 192, while the sum is 19.

The square root of 311424211 is about 17647.2153894035. The cubic root of 311424211 is about 677.8248047028.

Adding to 311424211 its reverse (112424113), we get a palindrome (423848324).

It can be divided in two parts, 31142 and 4211, that added together give a palindrome (35353).

The spelling of 311424211 in words is "three hundred eleven million, four hundred twenty-four thousand, two hundred eleven".