21411143223 has 8 divisors (see below), whose sum is σ = 28892145408. Its totient is φ = 14102118264.

The previous prime is 21411143219. The next prime is 21411143251. The reversal of 21411143223 is 32234111412.

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

It is not a de Polignac number, because 21411143223 - 2² = 21411143219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21411143193 and 21411143202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411143623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42994015 + ... + 42994512.

It is an arithmetic number, because the mean of its divisors is an integer number (3611518176).

Almost surely, 2^21411143223 is an apocalyptic number.

21411143223 is a deficient number, since it is larger than the sum of its proper divisors (7481002185).

21411143223 is an equidigital number, since it uses as much as digits as its factorization.

21411143223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85988613.

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

Adding to 21411143223 its reverse (32234111412), we get a palindrome (53645254635).

The spelling of 21411143223 in words is "twenty-one billion, four hundred eleven million, one hundred forty-three thousand, two hundred twenty-three".