211030311330 has 48 divisors (see below), whose sum is σ = 549639851904. Its totient is φ = 56176181280.

The previous prime is 211030311301. The next prime is 211030311347. The reversal of 211030311330 is 33113030112.

It is a happy number.

211030311330 is a `hidden beast` number, since 21 + 1 + 0 + 3 + 0 + 311 + 330 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2001834 + ... + 2104613.

It is an arithmetic number, because the mean of its divisors is an integer number (11450830248).

Almost surely, 2^211030311330 is an apocalyptic number.

211030311330 is an abundant number, since it is smaller than the sum of its proper divisors (338609540574).

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

211030311330 is a wasteful number, since it uses less digits than its factorization.

211030311330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107031 (or 4107028 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 211030311330 its reverse (33113030112), we get a palindrome (244143341442).

The spelling of 211030311330 in words is "two hundred eleven billion, thirty million, three hundred eleven thousand, three hundred thirty".