3040756687321 has 2 divisors, whose sum is σ = 3040756687322. Its totient is φ = 3040756687320.

The previous prime is 3040756687231. The next prime is 3040756687403. The reversal of 3040756687321 is 1237866570403.

Together with previous prime (3040756687231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3018715128025 + 22041559296 = 1737445^2 + 148464^2 .

It is a cyclic number.

It is not a de Polignac number, because 3040756687321 - 2¹¹ = 3040756685273 is a prime.

It is not a weakly prime, because it can be changed into another prime (3040756687721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520378343660 + 1520378343661.

It is an arithmetic number, because the mean of its divisors is an integer number (1520378343661).

Almost surely, 2^{3040756687321} is an apocalyptic number.

It is an amenable number.

3040756687321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3040756687321 is an equidigital number, since it uses as much as digits as its factorization.

3040756687321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 3040756687321 in words is "three trillion, forty billion, seven hundred fifty-six million, six hundred eighty-seven thousand, three hundred twenty-one".