111066281321 has 4 divisors (see below), whose sum is σ = 111067507200. Its totient is φ = 111065055444.

The previous prime is 111066281317. The next prime is 111066281363. The reversal of 111066281321 is 123182660111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111066281321 - 2² = 111066281317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111066280321) 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 in 3 ways as a sum of consecutive naturals, for example, 465161 + ... + 662198.

It is an arithmetic number, because the mean of its divisors is an integer number (27766876800).

Almost surely, 2^111066281321 is an apocalyptic number.

It is an amenable number.

111066281321 is a deficient number, since it is larger than the sum of its proper divisors (1225879).

111066281321 is an equidigital number, since it uses as much as digits as its factorization.

111066281321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225878.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 111066281321 in words is "one hundred eleven billion, sixty-six million, two hundred eighty-one thousand, three hundred twenty-one".