3040420240321 has 2 divisors, whose sum is σ = 3040420240322. Its totient is φ = 3040420240320.

The previous prime is 3040420240289. The next prime is 3040420240343. The reversal of 3040420240321 is 1230420240403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2027249154225 + 1013171086096 = 1423815^2 + 1006564^2 .

It is an emirp because it is prime and its reverse (1230420240403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3040420240321 - 2⁵ = 3040420240289 is a prime.

It is not a weakly prime, because it can be changed into another prime (3040420243321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520210120160 + 1520210120161.

It is an arithmetic number, because the mean of its divisors is an integer number (1520210120161).

Almost surely, 2^{3040420240321} is an apocalyptic number.

It is an amenable number.

3040420240321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3040420240321 is an equidigital number, since it uses as much as digits as its factorization.

3040420240321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 3040420240321 its reverse (1230420240403), we get a palindrome (4270840480724).

The spelling of 3040420240321 in words is "three trillion, forty billion, four hundred twenty million, two hundred forty thousand, three hundred twenty-one".