311213221212223 has 32 divisors (see below), whose sum is σ = 342798791227200. Its totient is φ = 282518233620480.

The previous prime is 311213221212217. The next prime is 311213221212239. The reversal of 311213221212223 is 322212122312113.

It is not a de Polignac number, because 311213221212223 - 2¹³ = 311213221204031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311213221212191 and 311213221212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311213221212263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5509242963 + ... + 5509299451.

It is an arithmetic number, because the mean of its divisors is an integer number (10712462225850).

Almost surely, 2^{311213221212223} is an apocalyptic number.

311213221212223 is a deficient number, since it is larger than the sum of its proper divisors (31585570014977).

311213221212223 is an equidigital number, since it uses as much as digits as its factorization.

311213221212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62344 (or 62322 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

Adding to 311213221212223 its reverse (322212122312113), we get a palindrome (633425343524336).

The spelling of 311213221212223 in words is "three hundred eleven trillion, two hundred thirteen billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twenty-three".