211303132020 has 72 divisors (see below), whose sum is σ = 658275904104. Its totient is φ = 54824594688.

The previous prime is 211303132009. The next prime is 211303132043. The reversal of 211303132020 is 20231303112.

211303132020 is a `hidden beast` number, since 21 + 1 + 303 + 1 + 320 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 108212049936 + 103091082084 = 328956^2 + 321078^2 .

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 = 211303131984 and 211303132002.

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, 15856939 + ... + 15870258.

Almost surely, 2^211303132020 is an apocalyptic number.

211303132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211303132020 is an abundant number, since it is smaller than the sum of its proper divisors (446972772084).

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

211303132020 is a wasteful number, since it uses less digits than its factorization.

211303132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31727249 (or 31727244 counting only the distinct ones).

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

Adding to 211303132020 its reverse (20231303112), we get a palindrome (231534435132).

The spelling of 211303132020 in words is "two hundred eleven billion, three hundred three million, one hundred thirty-two thousand, twenty".