30412273421521 has 2 divisors, whose sum is σ = 30412273421522. Its totient is φ = 30412273421520.

The previous prime is 30412273421473. The next prime is 30412273421527. The reversal of 30412273421521 is 12512437221403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18929121279121 + 11483152142400 = 4350761^2 + 3388680^2 .

It is a cyclic number.

It is not a de Polignac number, because 30412273421521 - 2³³ = 30403683486929 is a prime.

It is not a weakly prime, because it can be changed into another prime (30412273421527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15206136710760 + 15206136710761.

It is an arithmetic number, because the mean of its divisors is an integer number (15206136710761).

Almost surely, 2^{30412273421521} is an apocalyptic number.

It is an amenable number.

30412273421521 is a deficient number, since it is larger than the sum of its proper divisors (1).

30412273421521 is an equidigital number, since it uses as much as digits as its factorization.

30412273421521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 30412273421521 in words is "thirty trillion, four hundred twelve billion, two hundred seventy-three million, four hundred twenty-one thousand, five hundred twenty-one".