242515204103321 has 8 divisors (see below), whose sum is σ = 246842490710088. Its totient is φ = 238199260320000.

The previous prime is 242515204103299. The next prime is 242515204103329. The reversal of 242515204103321 is 123301402515242.

It can be written as a sum of positive squares in 4 ways, for example, as 171884038921 + 242343320064400 = 414589^2 + 15567380^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242515204103321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242515204103329) 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, 2835662720 + ... + 2835748241.

It is an arithmetic number, because the mean of its divisors is an integer number (30855311338761).

Almost surely, 2^{242515204103321} is an apocalyptic number.

It is an amenable number.

242515204103321 is a deficient number, since it is larger than the sum of its proper divisors (4327286606767).

242515204103321 is an equidigital number, since it uses as much as digits as its factorization.

242515204103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671411723.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 242515204103321 its reverse (123301402515242), we get a palindrome (365816606618563).

The spelling of 242515204103321 in words is "two hundred forty-two trillion, five hundred fifteen billion, two hundred four million, one hundred three thousand, three hundred twenty-one".