1212112001203 has 2 divisors, whose sum is σ = 1212112001204. Its totient is φ = 1212112001202.

The previous prime is 1212112001117. The next prime is 1212112001237. The reversal of 1212112001203 is 3021002112121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212112001203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212112001293) 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, 606056000601 + 606056000602.

It is an arithmetic number, because the mean of its divisors is an integer number (606056000602).

Almost surely, 2^{1212112001203} is an apocalyptic number.

1212112001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212112001203 is an equidigital number, since it uses as much as digits as its factorization.

1212112001203 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 1212112001203 its reverse (3021002112121), we get a palindrome (4233114113324).

The spelling of 1212112001203 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one thousand, two hundred three".