220311111323 has 2 divisors, whose sum is σ = 220311111324. Its totient is φ = 220311111322.

The previous prime is 220311111281. The next prime is 220311111353. The reversal of 220311111323 is 323111113022.

It is a happy number.

220311111323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220311111323 - 2³² = 216016144027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220311111295 and 220311111304.

It is not a weakly prime, because it can be changed into another prime (220311111353) 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 as a sum of consecutive naturals, namely, 110155555661 + 110155555662.

It is an arithmetic number, because the mean of its divisors is an integer number (110155555662).

Almost surely, 2^220311111323 is an apocalyptic number.

220311111323 is a deficient number, since it is larger than the sum of its proper divisors (1).

220311111323 is an equidigital number, since it uses as much as digits as its factorization.

220311111323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 220311111323 its reverse (323111113022), we get a palindrome (543422224345).

The spelling of 220311111323 in words is "two hundred twenty billion, three hundred eleven million, one hundred eleven thousand, three hundred twenty-three".