242531132510321 has 8 divisors (see below), whose sum is σ = 242544748711080. Its totient is φ = 242517516732288.

The previous prime is 242531132510281. The next prime is 242531132510333. The reversal of 242531132510321 is 123015231135242.

It can be written as a sum of positive squares in 4 ways, for example, as 116272312625296 + 126258819885025 = 10782964^2 + 11236495^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 242531132510321 - 2³⁴ = 242513952641137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242531132510341) 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, 2611831325 + ... + 2611924181.

It is an arithmetic number, because the mean of its divisors is an integer number (30318093588885).

Almost surely, 2^{242531132510321} is an apocalyptic number.

It is an amenable number.

242531132510321 is a deficient number, since it is larger than the sum of its proper divisors (13616200759).

242531132510321 is an equidigital number, since it uses as much as digits as its factorization.

242531132510321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211363.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 242531132510321 its reverse (123015231135242), we get a palindrome (365546363645563).

The spelling of 242531132510321 in words is "two hundred forty-two trillion, five hundred thirty-one billion, one hundred thirty-two million, five hundred ten thousand, three hundred twenty-one".