2100021032 has 16 divisors (see below), whose sum is σ = 3973665300. Its totient is φ = 1040376960.

The previous prime is 2100021029. The next prime is 2100021089. The reversal of 2100021032 is 2301200012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2089038436 + 10982596 = 45706^2 + 3314^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203269 + ... + 1205012.

Almost surely, 2^2100021032 is an apocalyptic number.

It is an amenable number.

2100021032 is a deficient number, since it is larger than the sum of its proper divisors (1873644268).

2100021032 is a wasteful number, since it uses less digits than its factorization.

2100021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408396 (or 2408392 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2100021032 is about 45825.9864269172. The cubic root of 2100021032 is about 1280.5834400750.

Adding to 2100021032 its reverse (2301200012), we get a palindrome (4401221044).

The spelling of 2100021032 in words is "two billion, one hundred million, twenty-one thousand, thirty-two".