10332331721 has 2 divisors, whose sum is σ = 10332331722. Its totient is φ = 10332331720.

The previous prime is 10332331717. The next prime is 10332331739. The reversal of 10332331721 is 12713323301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10326624400 + 5707321 = 101620^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 10332331721 - 2² = 10332331717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10332331771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5166165860 + 5166165861.

It is an arithmetic number, because the mean of its divisors is an integer number (5166165861).

Almost surely, 2^10332331721 is an apocalyptic number.

It is an amenable number.

10332331721 is a deficient number, since it is larger than the sum of its proper divisors (1).

10332331721 is an equidigital number, since it uses as much as digits as its factorization.

10332331721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The spelling of 10332331721 in words is "ten billion, three hundred thirty-two million, three hundred thirty-one thousand, seven hundred twenty-one".