305020221340402 has 8 divisors (see below), whose sum is σ = 457642664537436. Its totient is φ = 152472666494592.

The previous prime is 305020221340397. The next prime is 305020221340447. The reversal of 305020221340402 is 204043122020503.

It can be written as a sum of positive squares in 2 ways, for example, as 301129697841921 + 3890523498481 = 17353089^2 + 1972441^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18722077623 + ... + 18722093914.

Almost surely, 2^{305020221340402} is an apocalyptic number.

305020221340402 is a deficient number, since it is larger than the sum of its proper divisors (152622443197034).

305020221340402 is a wasteful number, since it uses less digits than its factorization.

305020221340402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37444175612.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 305020221340402 its reverse (204043122020503), we get a palindrome (509063343360905).

The spelling of 305020221340402 in words is "three hundred five trillion, twenty billion, two hundred twenty-one million, three hundred forty thousand, four hundred two".