30112002121 has 4 divisors (see below), whose sum is σ = 30131074000. Its totient is φ = 30092930244.

The previous prime is 30112002091. The next prime is 30112002139. The reversal of 30112002121 is 12120021103.

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-30112002121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30112002421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9533571 + ... + 9536728.

It is an arithmetic number, because the mean of its divisors is an integer number (7532768500).

Almost surely, 2^30112002121 is an apocalyptic number.

It is an amenable number.

30112002121 is a deficient number, since it is larger than the sum of its proper divisors (19071879).

30112002121 is a wasteful number, since it uses less digits than its factorization.

30112002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19071878.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30112002121 its reverse (12120021103), we get a palindrome (42232023224).

The spelling of 30112002121 in words is "thirty billion, one hundred twelve million, two thousand, one hundred twenty-one".