30020200129 has 2 divisors, whose sum is σ = 30020200130. Its totient is φ = 30020200128.

The previous prime is 30020200099. The next prime is 30020200151. The reversal of 30020200129 is 92100202003.

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., 29361507904 + 658692225 = 171352^2 + 25665^2 .

It is an emirp because it is prime and its reverse (92100202003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30020200129 - 2¹¹ = 30020198081 is a prime.

It is not a weakly prime, because it can be changed into another prime (30020230129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010100064 + 15010100065.

It is an arithmetic number, because the mean of its divisors is an integer number (15010100065).

Almost surely, 2^30020200129 is an apocalyptic number.

It is an amenable number.

30020200129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020200129 is an equidigital number, since it uses as much as digits as its factorization.

30020200129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The spelling of 30020200129 in words is "thirty billion, twenty million, two hundred thousand, one hundred twenty-nine".