311130312211 has 4 divisors (see below), whose sum is σ = 311131427872. Its totient is φ = 311129196552.

The previous prime is 311130312193. The next prime is 311130312223. The reversal of 311130312211 is 112213031113.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 112213031113 = 42689 ⋅2628617.

It is a cyclic number.

It is not a de Polignac number, because 311130312211 - 2⁵ = 311130312179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311130312271) 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, 268966 + ... + 833428.

It is an arithmetic number, because the mean of its divisors is an integer number (77782856968).

Almost surely, 2^311130312211 is an apocalyptic number.

311130312211 is a deficient number, since it is larger than the sum of its proper divisors (1115661).

311130312211 is an equidigital number, since it uses as much as digits as its factorization.

311130312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115660.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 311130312211 its reverse (112213031113), we get a palindrome (423343343324).

The spelling of 311130312211 in words is "three hundred eleven billion, one hundred thirty million, three hundred twelve thousand, two hundred eleven".