21141404232443 has 8 divisors (see below), whose sum is σ = 23076256276800. Its totient is φ = 19208703222280.

The previous prime is 21141404232419. The next prime is 21141404232449. The reversal of 21141404232443 is 34423240414112.

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

It is not a de Polignac number, because 21141404232443 - 2¹⁰ = 21141404231419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21141404232449) 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, 537737993 + ... + 537777306.

It is an arithmetic number, because the mean of its divisors is an integer number (2884532034600).

Almost surely, 2^{21141404232443} is an apocalyptic number.

21141404232443 is a deficient number, since it is larger than the sum of its proper divisors (1934852044357).

21141404232443 is a wasteful number, since it uses less digits than its factorization.

21141404232443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075517097.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 21141404232443 its reverse (34423240414112), we get a palindrome (55564644646555).

The spelling of 21141404232443 in words is "twenty-one trillion, one hundred forty-one billion, four hundred four million, two hundred thirty-two thousand, four hundred forty-three".