30021320211 has 4 divisors (see below), whose sum is σ = 40028426952. Its totient is φ = 20014213472.

The previous prime is 30021320207. The next prime is 30021320213. The reversal of 30021320211 is 11202312003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11202312003 = 3 ⋅3734104001.

It is a cyclic number.

It is not a de Polignac number, because 30021320211 - 2² = 30021320207 is a prime.

It is a super-2 number, since 2×30021320211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30021320213) 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, 5003553366 + ... + 5003553371.

It is an arithmetic number, because the mean of its divisors is an integer number (10007106738).

Almost surely, 2^30021320211 is an apocalyptic number.

30021320211 is a deficient number, since it is larger than the sum of its proper divisors (10007106741).

30021320211 is a wasteful number, since it uses less digits than its factorization.

30021320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007106740.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30021320211 its reverse (11202312003), we get a palindrome (41223632214).

The spelling of 30021320211 in words is "thirty billion, twenty-one million, three hundred twenty thousand, two hundred eleven".