1220203300243 has 2 divisors, whose sum is σ = 1220203300244. Its totient is φ = 1220203300242.

The previous prime is 1220203300229. The next prime is 1220203300297. The reversal of 1220203300243 is 3420033020221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220203300243 - 2¹³ = 1220203292051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220203300343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610101650121 + 610101650122.

It is an arithmetic number, because the mean of its divisors is an integer number (610101650122).

Almost surely, 2^{1220203300243} is an apocalyptic number.

1220203300243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220203300243 is an equidigital number, since it uses as much as digits as its factorization.

1220203300243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 1220203300243 its reverse (3420033020221), we get a palindrome (4640236320464).

The spelling of 1220203300243 in words is "one trillion, two hundred twenty billion, two hundred three million, three hundred thousand, two hundred forty-three".