30030012121 has 4 divisors (see below), whose sum is σ = 30071779200. Its totient is φ = 29988245044.

The previous prime is 30030012091. The next prime is 30030012157. The reversal of 30030012121 is 12121003003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30030012121 - 2¹³ = 30030003929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30030012421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20882461 + ... + 20883898.

It is an arithmetic number, because the mean of its divisors is an integer number (7517944800).

Almost surely, 2^30030012121 is an apocalyptic number.

It is an amenable number.

30030012121 is a deficient number, since it is larger than the sum of its proper divisors (41767079).

30030012121 is an equidigital number, since it uses as much as digits as its factorization.

30030012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41767078.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30030012121 its reverse (12121003003), we get a palindrome (42151015124).

The spelling of 30030012121 in words is "thirty billion, thirty million, twelve thousand, one hundred twenty-one".