210213234020 has 48 divisors (see below), whose sum is σ = 445608036720. Its totient is φ = 83293249536.

The previous prime is 210213234017. The next prime is 210213234031. The reversal of 210213234020 is 20432312012.

It can be written as a sum of positive squares in 8 ways, for example, as 13213962304 + 196999271716 = 114952^2 + 443846^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 210213233983 and 210213234001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11224184 + ... + 11242896.

It is an arithmetic number, because the mean of its divisors is an integer number (9283500765).

Almost surely, 2^210213234020 is an apocalyptic number.

210213234020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210213234020 is an abundant number, since it is smaller than the sum of its proper divisors (235394802700).

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

210213234020 is a wasteful number, since it uses less digits than its factorization.

210213234020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23984 (or 23982 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 210213234020 its reverse (20432312012), we get a palindrome (230645546032).

The spelling of 210213234020 in words is "two hundred ten billion, two hundred thirteen million, two hundred thirty-four thousand, twenty".