10331320081 has 2 divisors, whose sum is σ = 10331320082. Its totient is φ = 10331320080.

The previous prime is 10331320031. The next prime is 10331320099. The reversal of 10331320081 is 18002313301.

10331320081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6152990481 + 4178329600 = 78441^2 + 64640^2 .

It is a cyclic number.

It is not a de Polignac number, because 10331320081 - 2²⁷ = 10197102353 is a prime.

It is a super-2 number, since 2×10331320081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10331320031) 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, 5165660040 + 5165660041.

It is an arithmetic number, because the mean of its divisors is an integer number (5165660041).

Almost surely, 2^10331320081 is an apocalyptic number.

It is an amenable number.

10331320081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10331320081 is an equidigital number, since it uses as much as digits as its factorization.

10331320081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 10331320081 its reverse (18002313301), we get a palindrome (28333633382).

The spelling of 10331320081 in words is "ten billion, three hundred thirty-one million, three hundred twenty thousand, eighty-one".