111010101010223 has 2 divisors, whose sum is σ = 111010101010224. Its totient is φ = 111010101010222.

The previous prime is 111010101010019. The next prime is 111010101010307. The reversal of 111010101010223 is 322010101010111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111010101010223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111010101010198 and 111010101010207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010101010423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505050505111 + 55505050505112.

It is an arithmetic number, because the mean of its divisors is an integer number (55505050505112).

Almost surely, 2^{111010101010223} is an apocalyptic number.

111010101010223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010101010223 is an equidigital number, since it uses as much as digits as its factorization.

111010101010223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111010101010223 its reverse (322010101010111), we get a palindrome (433020202020334).

The spelling of 111010101010223 in words is "one hundred eleven trillion, ten billion, one hundred one million, ten thousand, two hundred twenty-three".