1021363212673 has 2 divisors, whose sum is σ = 1021363212674. Its totient is φ = 1021363212672.

The previous prime is 1021363212563. The next prime is 1021363212691. The reversal of 1021363212673 is 3762123631201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663097518864 + 358265693809 = 814308^2 + 598553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021363212673 - 2¹⁷ = 1021363081601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021363212073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510681606336 + 510681606337.

It is an arithmetic number, because the mean of its divisors is an integer number (510681606337).

Almost surely, 2^{1021363212673} is an apocalyptic number.

It is an amenable number.

1021363212673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021363212673 is an equidigital number, since it uses as much as digits as its factorization.

1021363212673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

Adding to 1021363212673 its reverse (3762123631201), we get a palindrome (4783486843874).

The spelling of 1021363212673 in words is "one trillion, twenty-one billion, three hundred sixty-three million, two hundred twelve thousand, six hundred seventy-three".