10912319881 has 2 divisors, whose sum is σ = 10912319882. Its totient is φ = 10912319880.

The previous prime is 10912319879. The next prime is 10912319909. The reversal of 10912319881 is 18891321901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6856668025 + 4055651856 = 82805^2 + 63684^2 .

It is an emirp because it is prime and its reverse (18891321901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10912319881 - 2¹ = 10912319879 is a prime.

It is a super-2 number, since 2×10912319881² (a number of 21 digits) contains 22 as substring.

Together with 10912319879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10912319851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5456159940 + 5456159941.

It is an arithmetic number, because the mean of its divisors is an integer number (5456159941).

Almost surely, 2^10912319881 is an apocalyptic number.

It is an amenable number.

10912319881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10912319881 is an equidigital number, since it uses as much as digits as its factorization.

10912319881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 10912319881 in words is "ten billion, nine hundred twelve million, three hundred nineteen thousand, eight hundred eighty-one".