1200021310303 has 2 divisors, whose sum is σ = 1200021310304. Its totient is φ = 1200021310302.

The previous prime is 1200021310237. The next prime is 1200021310309. The reversal of 1200021310303 is 3030131200021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200021310303 - 2⁹ = 1200021309791 is a prime.

It is a super-2 number, since 2×1200021310303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200021310309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600010655151 + 600010655152.

It is an arithmetic number, because the mean of its divisors is an integer number (600010655152).

Almost surely, 2^{1200021310303} is an apocalyptic number.

1200021310303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200021310303 is an equidigital number, since it uses as much as digits as its factorization.

1200021310303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1200021310303 its reverse (3030131200021), we get a palindrome (4230152510324).

The spelling of 1200021310303 in words is "one trillion, two hundred billion, twenty-one million, three hundred ten thousand, three hundred three".