30021311211 has 8 divisors (see below), whose sum is σ = 42383027664. Its totient is φ = 18836901120.

The previous prime is 30021311207. The next prime is 30021311213. The reversal of 30021311211 is 11211312003.

It is a happy number.

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

It is not a de Polignac number, because 30021311211 - 2² = 30021311207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30021311213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294326530 + ... + 294326631.

It is an arithmetic number, because the mean of its divisors is an integer number (5297878458).

Almost surely, 2^30021311211 is an apocalyptic number.

30021311211 is a deficient number, since it is larger than the sum of its proper divisors (12361716453).

30021311211 is a wasteful number, since it uses less digits than its factorization.

30021311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588653181.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30021311211 its reverse (11211312003), we get a palindrome (41232623214).

The spelling of 30021311211 in words is "thirty billion, twenty-one million, three hundred eleven thousand, two hundred eleven".