10213451321 has 2 divisors, whose sum is σ = 10213451322. Its totient is φ = 10213451320.

The previous prime is 10213451309. The next prime is 10213451357. The reversal of 10213451321 is 12315431201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10012804096 + 200647225 = 100064^2 + 14165^2 .

It is a cyclic number.

It is not a de Polignac number, because 10213451321 - 2¹⁰ = 10213450297 is a prime.

It is not a weakly prime, because it can be changed into another prime (10293451321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106725660 + 5106725661.

It is an arithmetic number, because the mean of its divisors is an integer number (5106725661).

Almost surely, 2^10213451321 is an apocalyptic number.

It is an amenable number.

10213451321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10213451321 is an equidigital number, since it uses as much as digits as its factorization.

10213451321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 10213451321 its reverse (12315431201), we get a palindrome (22528882522).

The spelling of 10213451321 in words is "ten billion, two hundred thirteen million, four hundred fifty-one thousand, three hundred twenty-one".