21414013132543 has 4 divisors (see below), whose sum is σ = 22345057181808. Its totient is φ = 20482969083280.

The previous prime is 21414013132531. The next prime is 21414013132621. The reversal of 21414013132543 is 34523131041412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21414013132543 - 2¹⁷ = 21414013001471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21414013132499 and 21414013132508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21414013132643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465522024598 + ... + 465522024643.

It is an arithmetic number, because the mean of its divisors is an integer number (5586264295452).

Almost surely, 2^{21414013132543} is an apocalyptic number.

21414013132543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21414013132543 is a deficient number, since it is larger than the sum of its proper divisors (931044049265).

21414013132543 is an equidigital number, since it uses as much as digits as its factorization.

21414013132543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931044049264.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 21414013132543 its reverse (34523131041412), we get a palindrome (55937144173955).

The spelling of 21414013132543 in words is "twenty-one trillion, four hundred fourteen billion, thirteen million, one hundred thirty-two thousand, five hundred forty-three".