1020020322493 has 2 divisors, whose sum is σ = 1020020322494. Its totient is φ = 1020020322492.

The previous prime is 1020020322487. The next prime is 1020020322509. The reversal of 1020020322493 is 3942230200201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1018753104889 + 1267217604 = 1009333^2 + 35598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020020322493 - 2⁹ = 1020020321981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020020302493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510010161246 + 510010161247.

It is an arithmetic number, because the mean of its divisors is an integer number (510010161247).

Almost surely, 2^{1020020322493} is an apocalyptic number.

It is an amenable number.

1020020322493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020020322493 is an equidigital number, since it uses as much as digits as its factorization.

1020020322493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1020020322493 its reverse (3942230200201), we get a palindrome (4962250522694).

The spelling of 1020020322493 in words is "one trillion, twenty billion, twenty million, three hundred twenty-two thousand, four hundred ninety-three".