15040345321 has 2 divisors, whose sum is σ = 15040345322. Its totient is φ = 15040345320.

The previous prime is 15040345241. The next prime is 15040345343. The reversal of 15040345321 is 12354304051.

15040345321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14511575296 + 528770025 = 120464^2 + 22995^2 .

It is a cyclic number.

It is not a de Polignac number, because 15040345321 - 2⁷ = 15040345193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15040345321.

It is not a weakly prime, because it can be changed into another prime (15040345351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520172660 + 7520172661.

It is an arithmetic number, because the mean of its divisors is an integer number (7520172661).

Almost surely, 2^15040345321 is an apocalyptic number.

It is an amenable number.

15040345321 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040345321 is an equidigital number, since it uses as much as digits as its factorization.

15040345321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 15040345321 its reverse (12354304051), we get a palindrome (27394649372).

The spelling of 15040345321 in words is "fifteen billion, forty million, three hundred forty-five thousand, three hundred twenty-one".