211330203030 has 48 divisors (see below), whose sum is σ = 550385241120. Its totient is φ = 56259673344.

The previous prime is 211330203023. The next prime is 211330203061. The reversal of 211330203030 is 30302033112.

211330203030 is a `hidden beast` number, since 2 + 11 + 330 + 20 + 303 + 0 = 666.

211330203030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211330202994 and 211330203012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1926490 + ... + 2033229.

It is an arithmetic number, because the mean of its divisors is an integer number (11466359190).

Almost surely, 2^211330203030 is an apocalyptic number.

211330203030 is an abundant number, since it is smaller than the sum of its proper divisors (339055038090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211330203030 is a wasteful number, since it uses less digits than its factorization.

211330203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960325 (or 3960322 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 211330203030 its reverse (30302033112), we get a palindrome (241632236142).

The spelling of 211330203030 in words is "two hundred eleven billion, three hundred thirty million, two hundred three thousand, thirty".