10320200021 has 4 divisors (see below), whose sum is σ = 10326276000. Its totient is φ = 10314124044.

The previous prime is 10320200017. The next prime is 10320200029. The reversal of 10320200021 is 12000202301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10320200021 - 2² = 10320200017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10320199975 and 10320200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320200029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035441 + ... + 3038838.

It is an arithmetic number, because the mean of its divisors is an integer number (2581569000).

Almost surely, 2^10320200021 is an apocalyptic number.

It is an amenable number.

10320200021 is a deficient number, since it is larger than the sum of its proper divisors (6075979).

10320200021 is an equidigital number, since it uses as much as digits as its factorization.

10320200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075978.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 10320200021 its reverse (12000202301), we get a palindrome (22320402322).

The spelling of 10320200021 in words is "ten billion, three hundred twenty million, two hundred thousand, twenty-one".