11928322282921 has 12 divisors (see below), whose sum is σ = 13142829737232. Its totient is φ = 10736563610000.

The previous prime is 11928322282861. The next prime is 11928322282967. The reversal of 11928322282921 is 12928222382911.

It is a happy number.

It is not a de Polignac number, because 11928322282921 - 2²⁷ = 11928188065193 is a prime.

It is a super-3 number, since 3×11928322282921³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11928322280921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53039095 + ... + 53263516.

It is an arithmetic number, because the mean of its divisors is an integer number (1095235811436).

Almost surely, 2^{11928322282921} is an apocalyptic number.

11928322282921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11928322282921 is a deficient number, since it is larger than the sum of its proper divisors (1214507454311).

11928322282921 is a wasteful number, since it uses less digits than its factorization.

11928322282921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106302824 (or 106302723 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The spelling of 11928322282921 in words is "eleven trillion, nine hundred twenty-eight billion, three hundred twenty-two million, two hundred eighty-two thousand, nine hundred twenty-one".