30715364290021 has 2 divisors, whose sum is σ = 30715364290022. Its totient is φ = 30715364290020.

The previous prime is 30715364289983. The next prime is 30715364290057. The reversal of 30715364290021 is 12009246351703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25178708229921 + 5536656060100 = 5017839^2 + 2353010^2 .

It is a cyclic number.

It is not a de Polignac number, because 30715364290021 - 2¹¹ = 30715364287973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30715364290021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30715367290021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15357682145010 + 15357682145011.

It is an arithmetic number, because the mean of its divisors is an integer number (15357682145011).

Almost surely, 2^{30715364290021} is an apocalyptic number.

It is an amenable number.

30715364290021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30715364290021 is an equidigital number, since it uses as much as digits as its factorization.

30715364290021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 30715364290021 in words is "thirty trillion, seven hundred fifteen billion, three hundred sixty-four million, two hundred ninety thousand, twenty-one".