10320210421 has 2 divisors, whose sum is σ = 10320210422. Its totient is φ = 10320210420.

The previous prime is 10320210419. The next prime is 10320210427. The reversal of 10320210421 is 12401202301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6639968196 + 3680242225 = 81486^2 + 60665^2 .

It is a cyclic number.

It is not a de Polignac number, because 10320210421 - 2¹ = 10320210419 is a prime.

Together with 10320210419, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10320210395 and 10320210404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10320210427) by changing a digit.

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 as a sum of consecutive naturals, namely, 5160105210 + 5160105211.

It is an arithmetic number, because the mean of its divisors is an integer number (5160105211).

Almost surely, 2^10320210421 is an apocalyptic number.

It is an amenable number.

10320210421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10320210421 is an equidigital number, since it uses as much as digits as its factorization.

10320210421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10320210421 its reverse (12401202301), we get a palindrome (22721412722).

The spelling of 10320210421 in words is "ten billion, three hundred twenty million, two hundred ten thousand, four hundred twenty-one".