21200430403401 has 8 divisors (see below), whose sum is σ = 28270710220704. Its totient is φ = 14131885427520.

The previous prime is 21200430403357. The next prime is 21200430403403. The reversal of 21200430403401 is 10430403400212.

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

It is not a de Polignac number, because 21200430403401 - 2¹⁰ = 21200430402377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200430403403) 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, 433681840 + ... + 433730721.

It is an arithmetic number, because the mean of its divisors is an integer number (3533838777588).

Almost surely, 2^{21200430403401} is an apocalyptic number.

It is an amenable number.

21200430403401 is a deficient number, since it is larger than the sum of its proper divisors (7070279817303).

21200430403401 is an equidigital number, since it uses as much as digits as its factorization.

21200430403401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867420711.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21200430403401 its reverse (10430403400212), we get a palindrome (31630833803613).

The spelling of 21200430403401 in words is "twenty-one trillion, two hundred billion, four hundred thirty million, four hundred three thousand, four hundred one".