30211311205 has 8 divisors (see below), whose sum is σ = 36265680000. Its totient is φ = 24160977936.

The previous prime is 30211311199. The next prime is 30211311223. The reversal of 30211311205 is 50211311203.

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 30211311205 - 2³ = 30211311197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992385 + ... + 1022374.

It is an arithmetic number, because the mean of its divisors is an integer number (4533210000).

Almost surely, 2^30211311205 is an apocalyptic number.

It is an amenable number.

30211311205 is a deficient number, since it is larger than the sum of its proper divisors (6054368795).

30211311205 is a wasteful number, since it uses less digits than its factorization.

30211311205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017763.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 30211311205 its reverse (50211311203), we get a palindrome (80422622408).

The spelling of 30211311205 in words is "thirty billion, two hundred eleven million, three hundred eleven thousand, two hundred five".