21032403002 has 16 divisors (see below), whose sum is σ = 33983802720. Its totient is φ = 9704867952.

The previous prime is 21032402977. The next prime is 21032403017. The reversal of 21032403002 is 20030423012.

It is a super-2 number, since 2×21032403002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9893 + ... + 205335.

It is an arithmetic number, because the mean of its divisors is an integer number (2123987670).

Almost surely, 2^21032403002 is an apocalyptic number.

21032403002 is a deficient number, since it is larger than the sum of its proper divisors (12951399718).

21032403002 is a wasteful number, since it uses less digits than its factorization.

21032403002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199597.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21032403002 its reverse (20030423012), we get a palindrome (41062826014).

The spelling of 21032403002 in words is "twenty-one billion, thirty-two million, four hundred three thousand, two".