1021320300001 has 4 divisors (see below), whose sum is σ = 1023090353092. Its totient is φ = 1019550246912.

The previous prime is 1021320299983. The next prime is 1021320300029. The reversal of 1021320300001 is 1000030231201.

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 1006691155600 + 14629144401 = 1003340^2 + 120951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021320300001 - 2⁷ = 1021320299873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021320300071) 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 3 ways as a sum of consecutive naturals, for example, 885025680 + ... + 885026833.

It is an arithmetic number, because the mean of its divisors is an integer number (255772588273).

Almost surely, 2^{1021320300001} is an apocalyptic number.

It is an amenable number.

1021320300001 is a deficient number, since it is larger than the sum of its proper divisors (1770053091).

1021320300001 is an equidigital number, since it uses as much as digits as its factorization.

1021320300001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770053090.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1021320300001 its reverse (1000030231201), we get a palindrome (2021350531202).

The spelling of 1021320300001 in words is "one trillion, twenty-one billion, three hundred twenty million, three hundred thousand, one".