21032032200321 has 16 divisors (see below), whose sum is σ = 28519223539968. Its totient is φ = 13783950272400.

The previous prime is 21032032200299. The next prime is 21032032200337. The reversal of 21032032200321 is 12300223023012.

It is a happy number.

It is not a de Polignac number, because 21032032200321 - 2²⁶ = 21031965091457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21032032200341) 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, 106456275 + ... + 106653656.

It is an arithmetic number, because the mean of its divisors is an integer number (1782451471248).

Almost surely, 2^{21032032200321} is an apocalyptic number.

It is an amenable number.

21032032200321 is a deficient number, since it is larger than the sum of its proper divisors (7487191339647).

21032032200321 is a wasteful number, since it uses less digits than its factorization.

21032032200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213110492.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21032032200321 its reverse (12300223023012), we get a palindrome (33332255223333).

The spelling of 21032032200321 in words is "twenty-one trillion, thirty-two billion, thirty-two million, two hundred thousand, three hundred twenty-one".