30443021129 has 2 divisors, whose sum is σ = 30443021130. Its totient is φ = 30443021128.

The previous prime is 30443021057. The next prime is 30443021137. The reversal of 30443021129 is 92112034403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21256182025 + 9186839104 = 145795^2 + 95848^2 .

It is a cyclic number.

It is not a de Polignac number, because 30443021129 - 2⁸ = 30443020873 is a prime.

It is not a weakly prime, because it can be changed into another prime (30443021159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15221510564 + 15221510565.

It is an arithmetic number, because the mean of its divisors is an integer number (15221510565).

Almost surely, 2^30443021129 is an apocalyptic number.

It is an amenable number.

30443021129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30443021129 is an equidigital number, since it uses as much as digits as its factorization.

30443021129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 30443021129 in words is "thirty billion, four hundred forty-three million, twenty-one thousand, one hundred twenty-nine".