21030200032 has 24 divisors (see below), whose sum is σ = 41902045416. Its totient is φ = 10388410752.

The previous prime is 21030200021. The next prime is 21030200039. The reversal of 21030200032 is 23000203012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21030199985 and 21030200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030200039) by changing a digit.

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, 3956343 + ... + 3961654.

It is an arithmetic number, because the mean of its divisors is an integer number (1745918559).

Almost surely, 2^21030200032 is an apocalyptic number.

It is an amenable number.

21030200032 is a deficient number, since it is larger than the sum of its proper divisors (20871845384).

21030200032 is an equidigital number, since it uses as much as digits as its factorization.

21030200032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7918090 (or 7918082 counting only the distinct ones).

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

Adding to 21030200032 its reverse (23000203012), we get a palindrome (44030403044).

The spelling of 21030200032 in words is "twenty-one billion, thirty million, two hundred thousand, thirty-two".