1021305445353 has 6 divisors (see below), whose sum is σ = 1475218976634. Its totient is φ = 680870296896.

The previous prime is 1021305445331. The next prime is 1021305445367. The reversal of 1021305445353 is 3535445031201.

1021305445353 is a `hidden beast` number, since 1 + 0 + 2 + 13 + 0 + 544 + 53 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 993713909904 + 27591535449 = 996852^2 + 166107^2 .

It is not a de Polignac number, because 1021305445353 - 2¹² = 1021305441257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021305445373) 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 in 5 ways as a sum of consecutive naturals, for example, 56739191400 + ... + 56739191417.

It is an arithmetic number, because the mean of its divisors is an integer number (245869829439).

Almost surely, 2^{1021305445353} is an apocalyptic number.

It is an amenable number.

1021305445353 is a deficient number, since it is larger than the sum of its proper divisors (453913531281).

1021305445353 is a wasteful number, since it uses less digits than its factorization.

1021305445353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113478382823 (or 113478382820 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 1021305445353 in words is "one trillion, twenty-one billion, three hundred five million, four hundred forty-five thousand, three hundred fifty-three".