15242041451321 has 2 divisors, whose sum is σ = 15242041451322. Its totient is φ = 15242041451320.

The previous prime is 15242041451293. The next prime is 15242041451341. The reversal of 15242041451321 is 12315414024251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13124216125696 + 2117825325625 = 3622736^2 + 1455275^2 .

It is a cyclic number.

It is not a de Polignac number, because 15242041451321 - 2²² = 15242037257017 is a prime.

It is not a weakly prime, because it can be changed into another prime (15242041451341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7621020725660 + 7621020725661.

It is an arithmetic number, because the mean of its divisors is an integer number (7621020725661).

Almost surely, 2^{15242041451321} is an apocalyptic number.

It is an amenable number.

15242041451321 is a deficient number, since it is larger than the sum of its proper divisors (1).

15242041451321 is an equidigital number, since it uses as much as digits as its factorization.

15242041451321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 15242041451321 its reverse (12315414024251), we get a palindrome (27557455475572).

The spelling of 15242041451321 in words is "fifteen trillion, two hundred forty-two billion, forty-one million, four hundred fifty-one thousand, three hundred twenty-one".