15321320241 has 8 divisors (see below), whose sum is σ = 20531083200. Its totient is φ = 10162885392.

The previous prime is 15321320191. The next prime is 15321320279. The reversal of 15321320241 is 14202312351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15321320241 - 2¹³ = 15321312049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15321320291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12831330 + ... + 12832523.

It is an arithmetic number, because the mean of its divisors is an integer number (2566385400).

Almost surely, 2^15321320241 is an apocalyptic number.

It is an amenable number.

15321320241 is a deficient number, since it is larger than the sum of its proper divisors (5209762959).

15321320241 is a wasteful number, since it uses less digits than its factorization.

15321320241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25664055.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 15321320241 its reverse (14202312351), we get a palindrome (29523632592).

The spelling of 15321320241 in words is "fifteen billion, three hundred twenty-one million, three hundred twenty thousand, two hundred forty-one".