1123111193 has 2 divisors, whose sum is σ = 1123111194. Its totient is φ = 1123111192.

The previous prime is 1123111189. The next prime is 1123111207. The reversal of 1123111193 is 3911113211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 658794889 + 464316304 = 25667^2 + 21548^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123111193 - 2² = 1123111189 is a prime.

It is a super-2 number, since 2×1123111193² = 2522757503683766498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1123111123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561555596 + 561555597.

It is an arithmetic number, because the mean of its divisors is an integer number (561555597).

Almost surely, 2^1123111193 is an apocalyptic number.

It is an amenable number.

1123111193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123111193 is an equidigital number, since it uses as much as digits as its factorization.

1123111193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 23.

The square root of 1123111193 is about 33512.8511619050. The cubic root of 1123111193 is about 1039.4595296414.

The spelling of 1123111193 in words is "one billion, one hundred twenty-three million, one hundred eleven thousand, one hundred ninety-three".