7040330321 has 2 divisors, whose sum is σ = 7040330322. Its totient is φ = 7040330320.

The previous prime is 7040330287. The next prime is 7040330333. The reversal of 7040330321 is 1230330407.

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., 7003848721 + 36481600 = 83689^2 + 6040^2 .

It is a cyclic number.

It is not a de Polignac number, because 7040330321 - 2⁶ = 7040330257 is a prime.

It is not a weakly prime, because it can be changed into another prime (7040330821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520165160 + 3520165161.

It is an arithmetic number, because the mean of its divisors is an integer number (3520165161).

Almost surely, 2^7040330321 is an apocalyptic number.

It is an amenable number.

7040330321 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040330321 is an equidigital number, since it uses as much as digits as its factorization.

7040330321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 7040330321 is about 83906.6762599973. The cubic root of 7040330321 is about 1916.5979178601.

Adding to 7040330321 its reverse (1230330407), we get a palindrome (8270660728).

The spelling of 7040330321 in words is "seven billion, forty million, three hundred thirty thousand, three hundred twenty-one".