220111323111023 has 2 divisors, whose sum is σ = 220111323111024. Its totient is φ = 220111323111022.

The previous prime is 220111323110983. The next prime is 220111323111131. The reversal of 220111323111023 is 320111323111022.

It is a happy number.

220111323111023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220111323111023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220111323111023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220111323110023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055661555511 + 110055661555512.

It is an arithmetic number, because the mean of its divisors is an integer number (110055661555512).

Almost surely, 2^{220111323111023} is an apocalyptic number.

220111323111023 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111323111023 is an equidigital number, since it uses as much as digits as its factorization.

220111323111023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 220111323111023 its reverse (320111323111022), we get a palindrome (540222646222045).

Subtracting 220111323111023 from its reverse (320111323111022), we obtain a palindrome (99999999999999).

The spelling of 220111323111023 in words is "two hundred twenty trillion, one hundred eleven billion, three hundred twenty-three million, one hundred eleven thousand, twenty-three".