1211340033203 has 2 divisors, whose sum is σ = 1211340033204. Its totient is φ = 1211340033202.

The previous prime is 1211340033193. The next prime is 1211340033317. The reversal of 1211340033203 is 3023300431121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211340033203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211340033803) 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, 605670016601 + 605670016602.

It is an arithmetic number, because the mean of its divisors is an integer number (605670016602).

Almost surely, 2^{1211340033203} is an apocalyptic number.

1211340033203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211340033203 is an equidigital number, since it uses as much as digits as its factorization.

1211340033203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1211340033203 its reverse (3023300431121), we get a palindrome (4234640464324).

The spelling of 1211340033203 in words is "one trillion, two hundred eleven billion, three hundred forty million, thirty-three thousand, two hundred three".