1105123219 has 2 divisors, whose sum is σ = 1105123220. Its totient is φ = 1105123218.

The previous prime is 1105123189. The next prime is 1105123223. The reversal of 1105123219 is 9123215011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1105123219 - 2¹⁹ = 1104598931 is a prime.

It is a super-2 number, since 2×1105123219² = 2442594658345843922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1105123193 and 1105123202.

It is not a weakly prime, because it can be changed into another prime (1105123319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552561609 + 552561610.

It is an arithmetic number, because the mean of its divisors is an integer number (552561610).

Almost surely, 2^1105123219 is an apocalyptic number.

1105123219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105123219 is an equidigital number, since it uses as much as digits as its factorization.

1105123219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1105123219 is about 33243.3936143710. The cubic root of 1105123219 is about 1033.8802390268.

The spelling of 1105123219 in words is "one billion, one hundred five million, one hundred twenty-three thousand, two hundred nineteen".