213382870020 has 60 divisors (see below), whose sum is σ = 669389971404. Its totient is φ = 56902098240.

The previous prime is 213382870009. The next prime is 213382870123. The reversal of 213382870020 is 20078283312.

It is a happy number.

213382870020 is a `hidden beast` number, since 21 + 338 + 287 + 0 + 0 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 82861076736 + 130521793284 = 287856^2 + 361278^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65857291 + ... + 65860530.

Almost surely, 2^213382870020 is an apocalyptic number.

213382870020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213382870020 is an abundant number, since it is smaller than the sum of its proper divisors (456007101384).

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

213382870020 is a wasteful number, since it uses less digits than its factorization.

213382870020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131717842 (or 131717831 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 213382870020 in words is "two hundred thirteen billion, three hundred eighty-two million, eight hundred seventy thousand, twenty".