304313740681 has 2 divisors, whose sum is σ = 304313740682. Its totient is φ = 304313740680.

The previous prime is 304313740663. The next prime is 304313740699. The reversal of 304313740681 is 186047313403.

It is a balanced prime because it is at equal distance from previous prime (304313740663) and next prime (304313740699).

It can be written as a sum of positive squares in only one way, i.e., 190514790400 + 113798950281 = 436480^2 + 337341^2 .

It is a cyclic number.

It is not a de Polignac number, because 304313740681 - 2¹⁹ = 304313216393 is a prime.

It is a super-3 number, since 3×304313740681³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (304313740481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152156870340 + 152156870341.

It is an arithmetic number, because the mean of its divisors is an integer number (152156870341).

Almost surely, 2^304313740681 is an apocalyptic number.

It is an amenable number.

304313740681 is a deficient number, since it is larger than the sum of its proper divisors (1).

304313740681 is an equidigital number, since it uses as much as digits as its factorization.

304313740681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 304313740681 in words is "three hundred four billion, three hundred thirteen million, seven hundred forty thousand, six hundred eighty-one".