1020303220373 has 2 divisors, whose sum is σ = 1020303220374. Its totient is φ = 1020303220372.

The previous prime is 1020303220369. The next prime is 1020303220451. The reversal of 1020303220373 is 3730223030201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735379996849 + 284923223524 = 857543^2 + 533782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020303220373 - 2² = 1020303220369 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020303220333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510151610186 + 510151610187.

It is an arithmetic number, because the mean of its divisors is an integer number (510151610187).

Almost surely, 2^{1020303220373} is an apocalyptic number.

It is an amenable number.

1020303220373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020303220373 is an equidigital number, since it uses as much as digits as its factorization.

1020303220373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 26.

Adding to 1020303220373 its reverse (3730223030201), we get a palindrome (4750526250574).

The spelling of 1020303220373 in words is "one trillion, twenty billion, three hundred three million, two hundred twenty thousand, three hundred seventy-three".