2243001321 has 24 divisors (see below), whose sum is σ = 3652520480. Its totient is φ = 1359392760.

The previous prime is 2243001307. The next prime is 2243001323. The reversal of 2243001321 is 1231003422.

It is not a de Polignac number, because 2243001321 - 2¹⁰ = 2243000297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2243001294 and 2243001303.

It is not an unprimeable number, because it can be changed into a prime (2243001323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340015 + ... + 346548.

Almost surely, 2^2243001321 is an apocalyptic number.

It is an amenable number.

2243001321 is a deficient number, since it is larger than the sum of its proper divisors (1409519159).

2243001321 is a wasteful number, since it uses less digits than its factorization.

2243001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686594 (or 686577 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2243001321 is about 47360.3348911302. The cubic root of 2243001321 is about 1309.0106394635.

Adding to 2243001321 its reverse (1231003422), we get a palindrome (3474004743).

The spelling of 2243001321 in words is "two billion, two hundred forty-three million, one thousand, three hundred twenty-one".