1212333312103 has 2 divisors, whose sum is σ = 1212333312104. Its totient is φ = 1212333312102.

The previous prime is 1212333312089. The next prime is 1212333312143. The reversal of 1212333312103 is 3012133332121.

It is a weak prime.

It is an emirp because it is prime and its reverse (3012133332121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212333312103 - 2⁹ = 1212333311591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212333312143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606166656051 + 606166656052.

It is an arithmetic number, because the mean of its divisors is an integer number (606166656052).

Almost surely, 2^{1212333312103} is an apocalyptic number.

1212333312103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212333312103 is an equidigital number, since it uses as much as digits as its factorization.

1212333312103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1212333312103 its reverse (3012133332121), we get a palindrome (4224466644224).

The spelling of 1212333312103 in words is "one trillion, two hundred twelve billion, three hundred thirty-three million, three hundred twelve thousand, one hundred three".