1000320010021 has 16 divisors (see below), whose sum is σ = 1058962766400. Its totient is φ = 943290730368.

The previous prime is 1000320010013. The next prime is 1000320010097. The reversal of 1000320010021 is 1200100230001.

1000320010021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1000320010021 - 2³ = 1000320010013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000320010721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21848265 + ... + 21894001.

It is an arithmetic number, because the mean of its divisors is an integer number (66185172900).

Almost surely, 2^{1000320010021} is an apocalyptic number.

It is an amenable number.

1000320010021 is a deficient number, since it is larger than the sum of its proper divisors (58642756379).

1000320010021 is a wasteful number, since it uses less digits than its factorization.

1000320010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63348.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1000320010021 its reverse (1200100230001), we get a palindrome (2200420240022).

The spelling of 1000320010021 in words is "one trillion, three hundred twenty million, ten thousand, twenty-one".