21301132420401 has 16 divisors (see below), whose sum is σ = 28494244168704. Its totient is φ = 14154458333904.

The previous prime is 21301132420363. The next prime is 21301132420417. The reversal of 21301132420401 is 10402423110312.

It is not a de Polignac number, because 21301132420401 - 2²² = 21301128226097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21301132420801) 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, 7606645 + ... + 10023138.

It is an arithmetic number, because the mean of its divisors is an integer number (1780890260544).

Almost surely, 2^{21301132420401} is an apocalyptic number.

It is an amenable number.

21301132420401 is a deficient number, since it is larger than the sum of its proper divisors (7193111748303).

21301132420401 is a wasteful number, since it uses less digits than its factorization.

21301132420401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17631100.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21301132420401 its reverse (10402423110312), we get a palindrome (31703555530713).

The spelling of 21301132420401 in words is "twenty-one trillion, three hundred one billion, one hundred thirty-two million, four hundred twenty thousand, four hundred one".