210333312020 has 48 divisors (see below), whose sum is σ = 480580817808. Its totient is φ = 76860887040.

The previous prime is 210333312011. The next prime is 210333312037. The reversal of 210333312020 is 20213333012.

It can be written as a sum of positive squares in 8 ways, for example, as 23020804 + 210310291216 = 4798^2 + 458596^2 .

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 = 210333311983 and 210333312001.

It is a congruent number.

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, 4144751 + ... + 4195190.

It is an arithmetic number, because the mean of its divisors is an integer number (10012100371).

Almost surely, 2^210333312020 is an apocalyptic number.

210333312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210333312020 is an abundant number, since it is smaller than the sum of its proper divisors (270247505788).

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

210333312020 is a wasteful number, since it uses less digits than its factorization.

210333312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8340060 (or 8340058 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 210333312020 its reverse (20213333012), we get a palindrome (230546645032).

The spelling of 210333312020 in words is "two hundred ten billion, three hundred thirty-three million, three hundred twelve thousand, twenty".