304020423043213 has 4 divisors (see below), whose sum is σ = 306809601236380. Its totient is φ = 301231244850048.

The previous prime is 304020423043189. The next prime is 304020423043217. The reversal of 304020423043213 is 312340324020403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197557586248324 + 106462836794889 = 14055518^2 + 10318083^2 .

It is a cyclic number.

It is not a de Polignac number, because 304020423043213 - 2²¹ = 304020420946061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304020423043217) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1394589096420 + ... + 1394589096637.

It is an arithmetic number, because the mean of its divisors is an integer number (76702400309095).

Almost surely, 2^{304020423043213} is an apocalyptic number.

It is an amenable number.

304020423043213 is a deficient number, since it is larger than the sum of its proper divisors (2789178193167).

304020423043213 is a wasteful number, since it uses less digits than its factorization.

304020423043213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789178193166.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 304020423043213 its reverse (312340324020403), we get a palindrome (616360747063616).

The spelling of 304020423043213 in words is "three hundred four trillion, twenty billion, four hundred twenty-three million, forty-three thousand, two hundred thirteen".