30003121 has 8 divisors (see below), whose sum is σ = 30992544. Its totient is φ = 29027040.

The previous prime is 30003119. The next prime is 30003143. The reversal of 30003121 is 12130003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30003121 - 2¹ = 30003119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30003098 and 30003107.

It is not an unprimeable number, because it can be changed into a prime (30003101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341 + ... + 7861.

It is an arithmetic number, because the mean of its divisors is an integer number (3874068).

Almost surely, 2^30003121 is an apocalyptic number.

It is an amenable number.

30003121 is a deficient number, since it is larger than the sum of its proper divisors (989423).

30003121 is a wasteful number, since it uses less digits than its factorization.

30003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30003121 is about 5477.5104746591. The cubic root of 30003121 is about 310.7340254136.

Adding to 30003121 its reverse (12130003), we get a palindrome (42133124).

It can be divided in two parts, 30003 and 121, that multiplied together give a palindrome (3630363).

The spelling of 30003121 in words is "thirty million, three thousand, one hundred twenty-one".