304820811381 has 8 divisors (see below), whose sum is σ = 427818682720. Its totient is φ = 192518407152.

The previous prime is 304820811377. The next prime is 304820811401. The reversal of 304820811381 is 183118028403.

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

It is not a de Polignac number, because 304820811381 - 2² = 304820811377 is a prime.

It is a super-2 number, since 2×304820811381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304820811331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2673866710 + ... + 2673866823.

It is an arithmetic number, because the mean of its divisors is an integer number (53477335340).

Almost surely, 2^304820811381 is an apocalyptic number.

It is an amenable number.

304820811381 is a deficient number, since it is larger than the sum of its proper divisors (122997871339).

304820811381 is a wasteful number, since it uses less digits than its factorization.

304820811381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347733555.

The product of its (nonzero) digits is 36864, while the sum is 39.

Adding to 304820811381 its reverse (183118028403), we get a palindrome (487938839784).

The spelling of 304820811381 in words is "three hundred four billion, eight hundred twenty million, eight hundred eleven thousand, three hundred eighty-one".