30310740713221 has 2 divisors, whose sum is σ = 30310740713222. Its totient is φ = 30310740713220.

The previous prime is 30310740713191. The next prime is 30310740713243. The reversal of 30310740713221 is 12231704701303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21121506322596 + 9189234390625 = 4595814^2 + 3031375^2 .

It is a cyclic number.

It is not a de Polignac number, because 30310740713221 - 2⁹ = 30310740712709 is a prime.

It is a super-2 number, since 2×30310740713221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30310740713261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155370356610 + 15155370356611.

It is an arithmetic number, because the mean of its divisors is an integer number (15155370356611).

Almost surely, 2^{30310740713221} is an apocalyptic number.

It is an amenable number.

30310740713221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30310740713221 is an equidigital number, since it uses as much as digits as its factorization.

30310740713221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 30310740713221 in words is "thirty trillion, three hundred ten billion, seven hundred forty million, seven hundred thirteen thousand, two hundred twenty-one".