11419273321 has 3 divisors (see below), whose sum is σ = 11419380183. Its totient is φ = 11419166460.

The previous prime is 11419273319. The next prime is 11419273343. The reversal of 11419273321 is 12337291411.

It is a happy number.

The square root of 11419273321 is 106861.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 6465928921 + 4953344400 = 80411^2 + 70380^2 .

It is not a de Polignac number, because 11419273321 - 2¹ = 11419273319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11419273351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 53431 + ... + 160291.

It is an arithmetic number, because the mean of its divisors is an integer number (3806460061).

Almost surely, 2^11419273321 is an apocalyptic number.

11419273321 is the 106861-st square number.

11419273321 is the 53431-st centered octagonal number.

It is an amenable number.

11419273321 is a deficient number, since it is larger than the sum of its proper divisors (106862).

11419273321 is an frugal number, since it uses more digits than its factorization.

11419273321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213722 (or 106861 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The spelling of 11419273321 in words is "eleven billion, four hundred nineteen million, two hundred seventy-three thousand, three hundred twenty-one".