30011021 has 8 divisors (see below), whose sum is σ = 31519104. Its totient is φ = 28519920.

The previous prime is 30010997. The next prime is 30011029. The reversal of 30011021 is 12011003.

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 30011021 - 2¹⁴ = 29994637 is a prime.

It is a super-2 number, since 2×30011021² = 1801322762924882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011029) 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, 545 + ... + 7766.

It is an arithmetic number, because the mean of its divisors is an integer number (3939888).

Almost surely, 2^30011021 is an apocalyptic number.

It is an amenable number.

30011021 is a deficient number, since it is larger than the sum of its proper divisors (1508083).

30011021 is a wasteful number, since it uses less digits than its factorization.

30011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 30011021 is about 5478.2315577201. The cubic root of 30011021 is about 310.7612957252.

Adding to 30011021 its reverse (12011003), we get a palindrome (42022024).

The spelling of 30011021 in words is "thirty million, eleven thousand, twenty-one".