1213450445203 has 2 divisors, whose sum is σ = 1213450445204. Its totient is φ = 1213450445202.

The previous prime is 1213450445197. The next prime is 1213450445209. The reversal of 1213450445203 is 3025440543121.

It is a balanced prime because it is at equal distance from previous prime (1213450445197) and next prime (1213450445209).

It is a cyclic number.

It is not a de Polignac number, because 1213450445203 - 2¹³ = 1213450437011 is a prime.

It is a super-2 number, since 2×1213450445203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213450445209) 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, 606725222601 + 606725222602.

It is an arithmetic number, because the mean of its divisors is an integer number (606725222602).

Almost surely, 2^{1213450445203} is an apocalyptic number.

1213450445203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213450445203 is an equidigital number, since it uses as much as digits as its factorization.

1213450445203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1213450445203 its reverse (3025440543121), we get a palindrome (4238890988324).

The spelling of 1213450445203 in words is "one trillion, two hundred thirteen billion, four hundred fifty million, four hundred forty-five thousand, two hundred three".