1213313111203 has 2 divisors, whose sum is σ = 1213313111204. Its totient is φ = 1213313111202.

The previous prime is 1213313111159. The next prime is 1213313111207. The reversal of 1213313111203 is 3021113133121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213313111203 - 2³⁷ = 1075874157731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213313111207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606656555601 + 606656555602.

It is an arithmetic number, because the mean of its divisors is an integer number (606656555602).

Almost surely, 2^{1213313111203} is an apocalyptic number.

1213313111203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213313111203 is an equidigital number, since it uses as much as digits as its factorization.

1213313111203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1213313111203 its reverse (3021113133121), we get a palindrome (4234426244324).

The spelling of 1213313111203 in words is "one trillion, two hundred thirteen billion, three hundred thirteen million, one hundred eleven thousand, two hundred three".