10956881321 has 8 divisors (see below), whose sum is σ = 11029344840. Its totient is φ = 10884451968.

The previous prime is 10956881317. The next prime is 10956881329. The reversal of 10956881321 is 12318865901.

10956881321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1985950096 + 8970931225 = 44564^2 + 94715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10956881321 - 2² = 10956881317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10956881329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111205 + ... + 1121021.

It is an arithmetic number, because the mean of its divisors is an integer number (1378668105).

Almost surely, 2^10956881321 is an apocalyptic number.

It is an amenable number.

10956881321 is a deficient number, since it is larger than the sum of its proper divisors (72463519).

10956881321 is an equidigital number, since it uses as much as digits as its factorization.

10956881321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17083.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 10956881321 in words is "ten billion, nine hundred fifty-six million, eight hundred eighty-one thousand, three hundred twenty-one".