30404210411521 has 2 divisors, whose sum is σ = 30404210411522. Its totient is φ = 30404210411520.

The previous prime is 30404210411501. The next prime is 30404210411537. The reversal of 30404210411521 is 12511401240403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26004788061121 + 4399422350400 = 5099489^2 + 2097480^2 .

It is a cyclic number.

It is not a de Polignac number, because 30404210411521 - 2⁵ = 30404210411489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30404210411521.

It is not a weakly prime, because it can be changed into another prime (30404210411501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15202105205760 + 15202105205761.

It is an arithmetic number, because the mean of its divisors is an integer number (15202105205761).

Almost surely, 2^{30404210411521} is an apocalyptic number.

It is an amenable number.

30404210411521 is a deficient number, since it is larger than the sum of its proper divisors (1).

30404210411521 is an equidigital number, since it uses as much as digits as its factorization.

30404210411521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 30404210411521 its reverse (12511401240403), we get a palindrome (42915611651924).

The spelling of 30404210411521 in words is "thirty trillion, four hundred four billion, two hundred ten million, four hundred eleven thousand, five hundred twenty-one".