305120420152430 has 16 divisors (see below), whose sum is σ = 556740273484944. Its totient is φ = 120376275347520.

The previous prime is 305120420152343. The next prime is 305120420152489. The reversal of 305120420152430 is 34251024021503.

It is a super-2 number, since 2×305120420152430² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208986588416 + ... + 208986589875.

It is an arithmetic number, because the mean of its divisors is an integer number (34796267092809).

Almost surely, 2^{305120420152430} is an apocalyptic number.

305120420152430 is a deficient number, since it is larger than the sum of its proper divisors (251619853332514).

305120420152430 is a wasteful number, since it uses less digits than its factorization.

305120420152430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417973178371.

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

Adding to 305120420152430 its reverse (34251024021503), we get a palindrome (339371444173933).

The spelling of 305120420152430 in words is "three hundred five trillion, one hundred twenty billion, four hundred twenty million, one hundred fifty-two thousand, four hundred thirty".