211311033030 has 48 divisors (see below), whose sum is σ = 555581838240. Its totient is φ = 55716465024.

The previous prime is 211311033007. The next prime is 211311033049. The reversal of 211311033030 is 30330113112.

It is a happy number.

211311033030 is a `hidden beast` number, since 21 + 1 + 311 + 0 + 330 + 3 + 0 = 666.

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 = 211311032994 and 211311033012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13182442 + ... + 13198461.

It is an arithmetic number, because the mean of its divisors is an integer number (11574621630).

Almost surely, 2^211311033030 is an apocalyptic number.

211311033030 is an abundant number, since it is smaller than the sum of its proper divisors (344270805210).

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

211311033030 is a wasteful number, since it uses less digits than its factorization.

211311033030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26381005 (or 26381002 counting only the distinct ones).

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

Adding to 211311033030 its reverse (30330113112), we get a palindrome (241641146142).

The spelling of 211311033030 in words is "two hundred eleven billion, three hundred eleven million, thirty-three thousand, thirty".