305305201340242 has 8 divisors (see below), whose sum is σ = 457961034113100. Its totient is φ = 152651523302544.

The previous prime is 305305201340207. The next prime is 305305201340257. The reversal of 305305201340242 is 242043102503503.

It can be written as a sum of positive squares in 2 ways, for example, as 290942306534961 + 14362894805281 = 17057031^2 + 3789841^2 .

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

It is a super-2 number, since 2×305305201340242² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 305305201340198 and 305305201340207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538329517 + ... + 538896352.

Almost surely, 2^{305305201340242} is an apocalyptic number.

305305201340242 is a deficient number, since it is larger than the sum of its proper divisors (152655832772858).

305305201340242 is a wasteful number, since it uses less digits than its factorization.

305305201340242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077367580.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 305305201340242 its reverse (242043102503503), we get a palindrome (547348303843745).

The spelling of 305305201340242 in words is "three hundred five trillion, three hundred five billion, two hundred one million, three hundred forty thousand, two hundred forty-two".