1123094191 has 2 divisors, whose sum is σ = 1123094192. Its totient is φ = 1123094190.

The previous prime is 1123094173. The next prime is 1123094207. The reversal of 1123094191 is 1914903211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123094191 - 2⁹ = 1123093679 is a prime.

It is a super-2 number, since 2×1123094191² = 2522681123715888962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123094101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561547095 + 561547096.

It is an arithmetic number, because the mean of its divisors is an integer number (561547096).

Almost surely, 2^1123094191 is an apocalyptic number.

1123094191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123094191 is an equidigital number, since it uses as much as digits as its factorization.

1123094191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1123094191 is about 33512.5974970607. The cubic root of 1123094191 is about 1039.4542843964.

The spelling of 1123094191 in words is "one billion, one hundred twenty-three million, ninety-four thousand, one hundred ninety-one".