1021335310445 has 4 divisors (see below), whose sum is σ = 1225602372540. Its totient is φ = 817068248352.

The previous prime is 1021335310423. The next prime is 1021335310537. The reversal of 1021335310445 is 5440135331201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 187161794884 + 834173515561 = 432622^2 + 913331^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021335310445 - 2⁸ = 1021335310189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102133531040 + ... + 102133531049.

It is an arithmetic number, because the mean of its divisors is an integer number (306400593135).

Almost surely, 2^{1021335310445} is an apocalyptic number.

It is an amenable number.

1021335310445 is a deficient number, since it is larger than the sum of its proper divisors (204267062095).

1021335310445 is an equidigital number, since it uses as much as digits as its factorization.

1021335310445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204267062094.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 1021335310445 in words is "one trillion, twenty-one billion, three hundred thirty-five million, three hundred ten thousand, four hundred forty-five".