1021351305053 has 2 divisors, whose sum is σ = 1021351305054. Its totient is φ = 1021351305052.

The previous prime is 1021351305041. The next prime is 1021351305133. The reversal of 1021351305053 is 3505031531201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993556413529 + 27794891524 = 996773^2 + 166718^2 .

It is an emirp because it is prime and its reverse (3505031531201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021351305053 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021351305253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510675652526 + 510675652527.

It is an arithmetic number, because the mean of its divisors is an integer number (510675652527).

Almost surely, 2^{1021351305053} is an apocalyptic number.

It is an amenable number.

1021351305053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021351305053 is an equidigital number, since it uses as much as digits as its factorization.

1021351305053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 1021351305053 its reverse (3505031531201), we get a palindrome (4526382836254).

The spelling of 1021351305053 in words is "one trillion, twenty-one billion, three hundred fifty-one million, three hundred five thousand, fifty-three".