1105123223 has 2 divisors, whose sum is σ = 1105123224. Its totient is φ = 1105123222.

The previous prime is 1105123219. The next prime is 1105123273. The reversal of 1105123223 is 3223215011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1105123223 - 2² = 1105123219 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1105123195 and 1105123204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105123273) 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, 552561611 + 552561612.

It is an arithmetic number, because the mean of its divisors is an integer number (552561612).

Almost surely, 2^1105123223 is an apocalyptic number.

1105123223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105123223 is an equidigital number, since it uses as much as digits as its factorization.

1105123223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1105123223 is about 33243.3936745333. The cubic root of 1105123223 is about 1033.8802402741.

Adding to 1105123223 its reverse (3223215011), we get a palindrome (4328338234).

The spelling of 1105123223 in words is "one billion, one hundred five million, one hundred twenty-three thousand, two hundred twenty-three".