30043121 has 4 divisors (see below), whose sum is σ = 30087792. Its totient is φ = 29998452.

The previous prime is 30043099. The next prime is 30043163. The reversal of 30043121 is 12134003.

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 30043121 - 2¹⁸ = 29780977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30043096 and 30043105.

It is not an unprimeable number, because it can be changed into a prime (30043021) 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, 21311 + ... + 22676.

It is an arithmetic number, because the mean of its divisors is an integer number (7521948).

Almost surely, 2^30043121 is an apocalyptic number.

It is an amenable number.

30043121 is a deficient number, since it is larger than the sum of its proper divisors (44671).

30043121 is an equidigital number, since it uses as much as digits as its factorization.

30043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44670.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30043121 is about 5481.1605522918. The cubic root of 30043121 is about 310.8720537376.

Adding to 30043121 its reverse (12134003), we get a palindrome (42177124).

The spelling of 30043121 in words is "thirty million, forty-three thousand, one hundred twenty-one".