10021301321 has 12 divisors (see below), whose sum is σ = 10814822172. Its totient is φ = 9253810176.

The previous prime is 10021301239. The next prime is 10021301351. The reversal of 10021301321 is 12310312001.

It can be written as a sum of positive squares in 6 ways, for example, as 2262334096 + 7758967225 = 47564^2 + 88085^2 .

It is not a de Polignac number, because 10021301321 - 2¹⁰ = 10021300297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021301296 and 10021301305.

It is not an unprimeable number, because it can be changed into a prime (10021301351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57176 + ... + 152681.

It is an arithmetic number, because the mean of its divisors is an integer number (901235181).

Almost surely, 2^10021301321 is an apocalyptic number.

It is an amenable number.

10021301321 is a deficient number, since it is larger than the sum of its proper divisors (793520851).

10021301321 is an equidigital number, since it uses as much as digits as its factorization.

10021301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209980 (or 209927 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10021301321 its reverse (12310312001), we get a palindrome (22331613322).

The spelling of 10021301321 in words is "ten billion, twenty-one million, three hundred one thousand, three hundred twenty-one".