305320902345 has 12 divisors (see below), whose sum is σ = 529222897476. Its totient is φ = 162837814560.

The previous prime is 305320902319. The next prime is 305320902361. The reversal of 305320902345 is 543209023503.

305320902345 is a `hidden beast` number, since 3 + 0 + 532 + 0 + 90 + 2 + 34 + 5 = 666.

305320902345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145707868089 + 159613034256 = 381717^2 + 399516^2 .

It is not a de Polignac number, because 305320902345 - 2⁶ = 305320902281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3392454426 + ... + 3392454515.

It is an arithmetic number, because the mean of its divisors is an integer number (44101908123).

Almost surely, 2^305320902345 is an apocalyptic number.

It is an amenable number.

305320902345 is a deficient number, since it is larger than the sum of its proper divisors (223901995131).

305320902345 is a wasteful number, since it uses less digits than its factorization.

305320902345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784908952 (or 6784908949 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

Adding to 305320902345 its reverse (543209023503), we get a palindrome (848529925848).

The spelling of 305320902345 in words is "three hundred five billion, three hundred twenty million, nine hundred two thousand, three hundred forty-five".