21032320030 has 16 divisors (see below), whose sum is σ = 37896395904. Its totient is φ = 8404434720.

The previous prime is 21032320019. The next prime is 21032320033. The reversal of 21032320030 is 3002323012.

It is a junction number, because it is equal to n+sod(n) for n = 21032319986 and 21032320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032320033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051257 + ... + 1071076.

It is an arithmetic number, because the mean of its divisors is an integer number (2368524744).

Almost surely, 2^21032320030 is an apocalyptic number.

21032320030 is a deficient number, since it is larger than the sum of its proper divisors (16864075874).

21032320030 is a wasteful number, since it uses less digits than its factorization.

21032320030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123331.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21032320030 its reverse (3002323012), we get a palindrome (24034643042).

The spelling of 21032320030 in words is "twenty-one billion, thirty-two million, three hundred twenty thousand, thirty".