1212312102203 has 2 divisors, whose sum is σ = 1212312102204. Its totient is φ = 1212312102202.

The previous prime is 1212312102181. The next prime is 1212312102263. The reversal of 1212312102203 is 3022012132121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212312102203 - 2¹⁶ = 1212312036667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1212312102263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606156051101 + 606156051102.

It is an arithmetic number, because the mean of its divisors is an integer number (606156051102).

Almost surely, 2^{1212312102203} is an apocalyptic number.

1212312102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212312102203 is an equidigital number, since it uses as much as digits as its factorization.

1212312102203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1212312102203 its reverse (3022012132121), we get a palindrome (4234324234324).

The spelling of 1212312102203 in words is "one trillion, two hundred twelve billion, three hundred twelve million, one hundred two thousand, two hundred three".