210021030032 has 60 divisors (see below), whose sum is σ = 455710324860. Its totient is φ = 93662849280.

The previous prime is 210021030031. The next prime is 210021030053. The reversal of 210021030032 is 230030120012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 165434173696 + 44586856336 = 406736^2 + 211156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210021029989 and 210021030016.

It is not an unprimeable number, because it can be changed into a prime (210021030031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920807 + ... + 1126022.

It is an arithmetic number, because the mean of its divisors is an integer number (7595172081).

Almost surely, 2^210021030032 is an apocalyptic number.

210021030032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210021030032 is an abundant number, since it is smaller than the sum of its proper divisors (245689294828).

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

210021030032 is a wasteful number, since it uses less digits than its factorization.

210021030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046912 (or 2046895 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 210021030032 its reverse (230030120012), we get a palindrome (440051150044).

The spelling of 210021030032 in words is "two hundred ten billion, twenty-one million, thirty thousand, thirty-two".