301731728713 has 2 divisors, whose sum is σ = 301731728714. Its totient is φ = 301731728712.

The previous prime is 301731728707. The next prime is 301731728717. The reversal of 301731728713 is 317827137103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275927482944 + 25804245769 = 525288^2 + 160637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-301731728713 is a prime.

It is a super-2 number, since 2×301731728713² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 301731728713.

It is not a weakly prime, because it can be changed into another prime (301731728717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150865864356 + 150865864357.

It is an arithmetic number, because the mean of its divisors is an integer number (150865864357).

Almost surely, 2^301731728713 is an apocalyptic number.

It is an amenable number.

301731728713 is a deficient number, since it is larger than the sum of its proper divisors (1).

301731728713 is an equidigital number, since it uses as much as digits as its factorization.

301731728713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 43.

The spelling of 301731728713 in words is "three hundred one billion, seven hundred thirty-one million, seven hundred twenty-eight thousand, seven hundred thirteen".