30021013203211 has 4 divisors (see below), whose sum is σ = 30296435342800. Its totient is φ = 29745591063624.

The previous prime is 30021013203133. The next prime is 30021013203217. The reversal of 30021013203211 is 11230231012003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30021013203211 - 2¹⁷ = 30021013072139 is a prime.

It is a super-2 number, since 2×30021013203211² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30021013203217) 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, 137711069631 + ... + 137711069848.

It is an arithmetic number, because the mean of its divisors is an integer number (7574108835700).

Almost surely, 2^{30021013203211} is an apocalyptic number.

30021013203211 is a deficient number, since it is larger than the sum of its proper divisors (275422139589).

30021013203211 is a wasteful number, since it uses less digits than its factorization.

30021013203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275422139588.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30021013203211 its reverse (11230231012003), we get a palindrome (41251244215214).

The spelling of 30021013203211 in words is "thirty trillion, twenty-one billion, thirteen million, two hundred three thousand, two hundred eleven".