305345420331 has 8 divisors (see below), whose sum is σ = 465288259584. Its totient is φ = 174483097320.

The previous prime is 305345420269. The next prime is 305345420363. The reversal of 305345420331 is 133024543503.

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

It is not a de Polignac number, because 305345420331 - 2¹³ = 305345412139 is a prime.

It is a super-2 number, since 2×305345420331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 305345420292 and 305345420301.

It is not an unprimeable number, because it can be changed into a prime (305345420231) 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, 7270129035 + ... + 7270129076.

It is an arithmetic number, because the mean of its divisors is an integer number (58161032448).

Almost surely, 2^305345420331 is an apocalyptic number.

305345420331 is a deficient number, since it is larger than the sum of its proper divisors (159942839253).

305345420331 is a wasteful number, since it uses less digits than its factorization.

305345420331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14540258121.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 305345420331 its reverse (133024543503), we get a palindrome (438369963834).

The spelling of 305345420331 in words is "three hundred five billion, three hundred forty-five million, four hundred twenty thousand, three hundred thirty-one".