305020420324331 has 8 divisors (see below), whose sum is σ = 309000651724800. Its totient is φ = 301043169259560.

The previous prime is 305020420324313. The next prime is 305020420324343. The reversal of 305020420324331 is 133423024020503.

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-305020420324331 is a prime.

It is a super-2 number, since 2×305020420324331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305020420324381) 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, 744877901 + ... + 745287278.

It is an arithmetic number, because the mean of its divisors is an integer number (38625081465600).

Almost surely, 2^{305020420324331} is an apocalyptic number.

305020420324331 is a deficient number, since it is larger than the sum of its proper divisors (3980231400469).

305020420324331 is a wasteful number, since it uses less digits than its factorization.

305020420324331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490167849.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 305020420324331 its reverse (133423024020503), we get a palindrome (438443444344834).

The spelling of 305020420324331 in words is "three hundred five trillion, twenty billion, four hundred twenty million, three hundred twenty-four thousand, three hundred thirty-one".