311422223 has 8 divisors (see below), whose sum is σ = 362626848. Its totient is φ = 261896544.

The previous prime is 311422207. The next prime is 311422273. The reversal of 311422223 is 322224113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311422223 - 2⁴ = 311422207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311422195 and 311422204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311422273) 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, 419336 + ... + 420077.

It is an arithmetic number, because the mean of its divisors is an integer number (45328356).

Almost surely, 2^311422223 is an apocalyptic number.

311422223 is a deficient number, since it is larger than the sum of its proper divisors (51204625).

311422223 is an equidigital number, since it uses as much as digits as its factorization.

311422223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839473.

The product of its digits is 576, while the sum is 20.

The square root of 311422223 is about 17647.1590631467. The cubic root of 311422223 is about 677.8233623844.

Adding to 311422223 its reverse (322224113), we get a palindrome (633646336).

The spelling of 311422223 in words is "three hundred eleven million, four hundred twenty-two thousand, two hundred twenty-three".