11112120321 has 8 divisors (see below), whose sum is σ = 14817274944. Its totient is φ = 7407522960.

The previous prime is 11112120287. The next prime is 11112120323. The reversal of 11112120321 is 12302121111.

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

It is not a de Polignac number, because 11112120321 - 2²⁵ = 11078565889 is a prime.

It is a super-2 number, since 2×11112120321² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11112120321.

It is not an unprimeable number, because it can be changed into a prime (11112120323) 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, 90325 + ... + 174306.

It is an arithmetic number, because the mean of its divisors is an integer number (1852159368).

Almost surely, 2^11112120321 is an apocalyptic number.

It is an amenable number.

11112120321 is a deficient number, since it is larger than the sum of its proper divisors (3705154623).

11112120321 is a wasteful number, since it uses less digits than its factorization.

11112120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278631.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11112120321 its reverse (12302121111), we get a palindrome (23414241432).

The spelling of 11112120321 in words is "eleven billion, one hundred twelve million, one hundred twenty thousand, three hundred twenty-one".