210020030320 has 20 divisors (see below), whose sum is σ = 488296570680. Its totient is φ = 84008012096.

The previous prime is 210020030317. The next prime is 210020030411. The reversal of 210020030320 is 23030020012.

It is a happy number.

210020030320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×210020030320² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210020030320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312625110 + ... + 1312625269.

It is an arithmetic number, because the mean of its divisors is an integer number (24414828534).

Almost surely, 2^210020030320 is an apocalyptic number.

210020030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210020030320 is an abundant number, since it is smaller than the sum of its proper divisors (278276540360).

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

210020030320 is a wasteful number, since it uses less digits than its factorization.

210020030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625250392 (or 2625250386 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 210020030320 its reverse (23030020012), we get a palindrome (233050050332).

The spelling of 210020030320 in words is "two hundred ten billion, twenty million, thirty thousand, three hundred twenty".