1021322005747 has 2 divisors, whose sum is σ = 1021322005748. Its totient is φ = 1021322005746.

The previous prime is 1021322005729. The next prime is 1021322005811. The reversal of 1021322005747 is 7475002231201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021322005747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021322005447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510661002873 + 510661002874.

It is an arithmetic number, because the mean of its divisors is an integer number (510661002874).

Almost surely, 2^{1021322005747} is an apocalyptic number.

1021322005747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021322005747 is an equidigital number, since it uses as much as digits as its factorization.

1021322005747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

Adding to 1021322005747 its reverse (7475002231201), we get a palindrome (8496324236948).

The spelling of 1021322005747 in words is "one trillion, twenty-one billion, three hundred twenty-two million, five thousand, seven hundred forty-seven".