211230133020 has 120 divisors (see below), whose sum is σ = 666858169824. Its totient is φ = 55969190784.

The previous prime is 211230133019. The next prime is 211230133033. The reversal of 211230133020 is 20331032112.

211230133020 is a `hidden beast` number, since 2 + 1 + 12 + 301 + 330 + 20 = 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 = 211230132984 and 211230133002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 160912 + ... + 669591.

Almost surely, 2^211230133020 is an apocalyptic number.

211230133020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211230133020 is an abundant number, since it is smaller than the sum of its proper divisors (455628036804).

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

211230133020 is a wasteful number, since it uses less digits than its factorization.

211230133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830681 (or 830670 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 211230133020 its reverse (20331032112), we get a palindrome (231561165132).

The spelling of 211230133020 in words is "two hundred eleven billion, two hundred thirty million, one hundred thirty-three thousand, twenty".