21032200021003 has 4 divisors (see below), whose sum is σ = 21521320951768. Its totient is φ = 20543079090240.

The previous prime is 21032200020991. The next prime is 21032200021013. The reversal of 21032200021003 is 30012000223012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21032200021003 - 2²¹ = 21032197923851 is a prime.

It is a super-2 number, since 2×21032200021003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032200021013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244560465318 + ... + 244560465403.

It is an arithmetic number, because the mean of its divisors is an integer number (5380330237942).

Almost surely, 2^{21032200021003} is an apocalyptic number.

21032200021003 is a deficient number, since it is larger than the sum of its proper divisors (489120930765).

21032200021003 is an equidigital number, since it uses as much as digits as its factorization.

21032200021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489120930764.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032200021003 its reverse (30012000223012), we get a palindrome (51044200244015).

The spelling of 21032200021003 in words is "twenty-one trillion, thirty-two billion, two hundred million, twenty-one thousand, three".