21203302201003 has 16 divisors (see below), whose sum is σ = 24036663857920. Its totient is φ = 18541748758176.

The previous prime is 21203302200959. The next prime is 21203302201009. The reversal of 21203302201003 is 30010220330212.

It is a cyclic number.

It is not a de Polignac number, because 21203302201003 - 2⁹ = 21203302200491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21203302201009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10516276 + ... + 12369262.

It is an arithmetic number, because the mean of its divisors is an integer number (1502291491120).

Almost surely, 2^{21203302201003} is an apocalyptic number.

21203302201003 is a deficient number, since it is larger than the sum of its proper divisors (2833361656917).

21203302201003 is a wasteful number, since it uses less digits than its factorization.

21203302201003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899346.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21203302201003 its reverse (30010220330212), we get a palindrome (51213522531215).

The spelling of 21203302201003 in words is "twenty-one trillion, two hundred three billion, three hundred two million, two hundred one thousand, three".