11016481921 has 8 divisors (see below), whose sum is σ = 11347533288. Its totient is φ = 10688400000.

The previous prime is 11016481913. The next prime is 11016481939. The reversal of 11016481921 is 12918461011.

It can be written as a sum of positive squares in 4 ways, for example, as 1855886400 + 9160595521 = 43080^2 + 95711^2 .

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 11016481921 - 2³ = 11016481913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11016281921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734830 + ... + 749671.

It is an arithmetic number, because the mean of its divisors is an integer number (1418441661).

Almost surely, 2^11016481921 is an apocalyptic number.

It is an amenable number.

11016481921 is a deficient number, since it is larger than the sum of its proper divisors (331051367).

11016481921 is a wasteful number, since it uses less digits than its factorization.

11016481921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484723.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 11016481921 in words is "eleven billion, sixteen million, four hundred eighty-one thousand, nine hundred twenty-one".