2119321 has 4 divisors (see below), whose sum is σ = 2123572. Its totient is φ = 2115072.

The previous prime is 2119319. The next prime is 2119363. The reversal of 2119321 is 1239112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1243225 + 876096 = 1115^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119321 - 2¹ = 2119319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2119301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260 + ... + 2413.

It is an arithmetic number, because the mean of its divisors is an integer number (530893).

2^2119321 is an apocalyptic number.

2119321 is the 841-st hex number.

It is an amenable number.

2119321 is a deficient number, since it is larger than the sum of its proper divisors (4251).

2119321 is an equidigital number, since it uses as much as digits as its factorization.

2119321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250.

The product of its digits is 108, while the sum is 19.

The square root of 2119321 is about 1455.7887896257. The cubic root of 2119321 is about 128.4494494499.

The spelling of 2119321 in words is "two million, one hundred nineteen thousand, three hundred twenty-one".