1113103211243 has 2 divisors, whose sum is σ = 1113103211244. Its totient is φ = 1113103211242.

The previous prime is 1113103211221. The next prime is 1113103211261. The reversal of 1113103211243 is 3421123013111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113103211243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1113103211443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556551605621 + 556551605622.

It is an arithmetic number, because the mean of its divisors is an integer number (556551605622).

Almost surely, 2^{1113103211243} is an apocalyptic number.

1113103211243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113103211243 is an equidigital number, since it uses as much as digits as its factorization.

1113103211243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1113103211243 its reverse (3421123013111), we get a palindrome (4534226224354).

The spelling of 1113103211243 in words is "one trillion, one hundred thirteen billion, one hundred three million, two hundred eleven thousand, two hundred forty-three".