1100213243 has 2 divisors, whose sum is σ = 1100213244. Its totient is φ = 1100213242.

The previous prime is 1100213227. The next prime is 1100213249. The reversal of 1100213243 is 3423120011.

It is a strong prime.

It is an emirp because it is prime and its reverse (3423120011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100213243 - 2⁴ = 1100213227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100213249) 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, 550106621 + 550106622.

It is an arithmetic number, because the mean of its divisors is an integer number (550106622).

Almost surely, 2^1100213243 is an apocalyptic number.

1100213243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100213243 is an equidigital number, since it uses as much as digits as its factorization.

1100213243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1100213243 is about 33169.4625069506. The cubic root of 1100213243 is about 1032.3468161490.

Adding to 1100213243 its reverse (3423120011), we get a palindrome (4523333254).

The spelling of 1100213243 in words is "one billion, one hundred million, two hundred thirteen thousand, two hundred forty-three".