30120002431121 has 4 divisors (see below), whose sum is σ = 30160108959744. Its totient is φ = 30079895902500.

The previous prime is 30120002431111. The next prime is 30120002431159. The reversal of 30120002431121 is 12113420002103.

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 a de Polignac number, because none of the positive numbers 2^k-30120002431121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30120002431093 and 30120002431102.

It is not an unprimeable number, because it can be changed into a prime (30120002431111) 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, 20053263185 + ... + 20053264686.

It is an arithmetic number, because the mean of its divisors is an integer number (7540027239936).

Almost surely, 2^{30120002431121} is an apocalyptic number.

It is an amenable number.

30120002431121 is a deficient number, since it is larger than the sum of its proper divisors (40106528623).

30120002431121 is an equidigital number, since it uses as much as digits as its factorization.

30120002431121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40106528622.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30120002431121 its reverse (12113420002103), we get a palindrome (42233422433224).

The spelling of 30120002431121 in words is "thirty trillion, one hundred twenty billion, two million, four hundred thirty-one thousand, one hundred twenty-one".