30004133021 has 2 divisors, whose sum is σ = 30004133022. Its totient is φ = 30004133020.

The previous prime is 30004132909. The next prime is 30004133063. The reversal of 30004133021 is 12033140003.

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., 27818570521 + 2185562500 = 166789^2 + 46750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30004133021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30004132021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15002066510 + 15002066511.

It is an arithmetic number, because the mean of its divisors is an integer number (15002066511).

Almost surely, 2^30004133021 is an apocalyptic number.

It is an amenable number.

30004133021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30004133021 is an equidigital number, since it uses as much as digits as its factorization.

30004133021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30004133021 its reverse (12033140003), we get a palindrome (42037273024).

The spelling of 30004133021 in words is "thirty billion, four million, one hundred thirty-three thousand, twenty-one".