1113212273 has 2 divisors, whose sum is σ = 1113212274. Its totient is φ = 1113212272.

The previous prime is 1113212137. The next prime is 1113212311. The reversal of 1113212273 is 3722123111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100049889 + 13162384 = 33167^2 + 3628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113212273 - 2¹⁰ = 1113211249 is a prime.

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 (1113212873) 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, 556606136 + 556606137.

It is an arithmetic number, because the mean of its divisors is an integer number (556606137).

Almost surely, 2^1113212273 is an apocalyptic number.

It is an amenable number.

1113212273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113212273 is an equidigital number, since it uses as much as digits as its factorization.

1113212273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 23.

The square root of 1113212273 is about 33364.8358755142. The cubic root of 1113212273 is about 1036.3966373934.

Adding to 1113212273 its reverse (3722123111), we get a palindrome (4835335384).

The spelling of 1113212273 in words is "one billion, one hundred thirteen million, two hundred twelve thousand, two hundred seventy-three".