1111123030243 has 2 divisors, whose sum is σ = 1111123030244. Its totient is φ = 1111123030242.

The previous prime is 1111123030211. The next prime is 1111123030261. The reversal of 1111123030243 is 3420303211111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111123030243 - 2⁵ = 1111123030211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111123010243) 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, 555561515121 + 555561515122.

It is an arithmetic number, because the mean of its divisors is an integer number (555561515122).

Almost surely, 2^{1111123030243} is an apocalyptic number.

1111123030243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111123030243 is an equidigital number, since it uses as much as digits as its factorization.

1111123030243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1111123030243 its reverse (3420303211111), we get a palindrome (4531426241354).

The spelling of 1111123030243 in words is "one trillion, one hundred eleven billion, one hundred twenty-three million, thirty thousand, two hundred forty-three".