211011333030 has 48 divisors (see below), whose sum is σ = 548704591344. Its totient is φ = 56261983680.

The previous prime is 211011332981. The next prime is 211011333067. The reversal of 211011333030 is 30333110112.

It is a happy number.

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 = 211011332994 and 211011333012.

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, 516145 + ... + 829715.

It is an arithmetic number, because the mean of its divisors is an integer number (11431345653).

Almost surely, 2^211011333030 is an apocalyptic number.

211011333030 is an abundant number, since it is smaller than the sum of its proper divisors (337693258314).

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

211011333030 is a wasteful number, since it uses less digits than its factorization.

211011333030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321061 (or 321058 counting only the distinct ones).

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

Adding to 211011333030 its reverse (30333110112), we get a palindrome (241344443142).

The spelling of 211011333030 in words is "two hundred eleven billion, eleven million, three hundred thirty-three thousand, thirty".