1011102001243 has 2 divisors, whose sum is σ = 1011102001244. Its totient is φ = 1011102001242.

The previous prime is 1011102001237. The next prime is 1011102001379. The reversal of 1011102001243 is 3421002011101.

It is a weak prime.

It is an emirp because it is prime and its reverse (3421002011101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011102001243 - 2¹³ = 1011101993051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011102001213) 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, 505551000621 + 505551000622.

It is an arithmetic number, because the mean of its divisors is an integer number (505551000622).

Almost surely, 2^{1011102001243} is an apocalyptic number.

1011102001243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011102001243 is an equidigital number, since it uses as much as digits as its factorization.

1011102001243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1011102001243 its reverse (3421002011101), we get a palindrome (4432104012344).

The spelling of 1011102001243 in words is "one trillion, eleven billion, one hundred two million, one thousand, two hundred forty-three".