242251134305 has 4 divisors (see below), whose sum is σ = 290701361172. Its totient is φ = 193800907440.

The previous prime is 242251134283. The next prime is 242251134347. The reversal of 242251134305 is 503431152242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50632200256 + 191618934049 = 225016^2 + 437743^2 .

It is not a de Polignac number, because 242251134305 - 2¹⁸ = 242250872161 is a prime.

It is a super-2 number, since 2×242251134305² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24225113426 + ... + 24225113435.

It is an arithmetic number, because the mean of its divisors is an integer number (72675340293).

Almost surely, 2^242251134305 is an apocalyptic number.

It is an amenable number.

242251134305 is a deficient number, since it is larger than the sum of its proper divisors (48450226867).

242251134305 is an equidigital number, since it uses as much as digits as its factorization.

242251134305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48450226866.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 242251134305 its reverse (503431152242), we get a palindrome (745682286547).

The spelling of 242251134305 in words is "two hundred forty-two billion, two hundred fifty-one million, one hundred thirty-four thousand, three hundred five".