3040403321 has 2 divisors, whose sum is σ = 3040403322. Its totient is φ = 3040403320.

The previous prime is 3040403299. The next prime is 3040403323. The reversal of 3040403321 is 1233040403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2944147600 + 96255721 = 54260^2 + 9811^2 .

It is a cyclic number.

It is not a de Polignac number, because 3040403321 - 2¹⁸ = 3040141177 is a prime.

Together with 3040403323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3040403293 and 3040403302.

It is not a weakly prime, because it can be changed into another prime (3040403323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520201660 + 1520201661.

It is an arithmetic number, because the mean of its divisors is an integer number (1520201661).

Almost surely, 2^3040403321 is an apocalyptic number.

It is an amenable number.

3040403321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3040403321 is an equidigital number, since it uses as much as digits as its factorization.

3040403321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3040403321 is about 55139.8523846410. The cubic root of 3040403321 is about 1448.6953498269.

Adding to 3040403321 its reverse (1233040403), we get a palindrome (4273443724).

The spelling of 3040403321 in words is "three billion, forty million, four hundred three thousand, three hundred twenty-one".