1020302203321 has 2 divisors, whose sum is σ = 1020302203322. Its totient is φ = 1020302203320.

The previous prime is 1020302203307. The next prime is 1020302203343. The reversal of 1020302203321 is 1233022030201.

1020302203321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006939999296 + 13362204025 = 1003464^2 + 115595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020302203321 - 2⁹ = 1020302202809 is a prime.

It is a super-2 number, since 2×1020302203321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020302203351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510151101660 + 510151101661.

It is an arithmetic number, because the mean of its divisors is an integer number (510151101661).

Almost surely, 2^{1020302203321} is an apocalyptic number.

It is an amenable number.

1020302203321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020302203321 is an equidigital number, since it uses as much as digits as its factorization.

1020302203321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1020302203321 its reverse (1233022030201), we get a palindrome (2253324233522).

The spelling of 1020302203321 in words is "one trillion, twenty billion, three hundred two million, two hundred three thousand, three hundred twenty-one".