21200321010203 has 8 divisors (see below), whose sum is σ = 21334045896768. Its totient is φ = 21066640777224.

The previous prime is 21200321010173. The next prime is 21200321010217. The reversal of 21200321010203 is 30201012300212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21200321010203 - 2¹⁶ = 21200320944667 is a prime.

It is a super-2 number, since 2×21200321010203² (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 (21200321010263) 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, 10210601 + ... + 12110202.

It is an arithmetic number, because the mean of its divisors is an integer number (2666755737096).

Almost surely, 2^{21200321010203} is an apocalyptic number.

21200321010203 is a deficient number, since it is larger than the sum of its proper divisors (133724886565).

21200321010203 is a wasteful number, since it uses less digits than its factorization.

21200321010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22326793.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21200321010203 its reverse (30201012300212), we get a palindrome (51401333310415).

The spelling of 21200321010203 in words is "twenty-one trillion, two hundred billion, three hundred twenty-one million, ten thousand, two hundred three".