21411341144 has 64 divisors (see below), whose sum is σ = 42020259840. Its totient is φ = 10216500480.

The previous prime is 21411341141. The next prime is 21411341183. The reversal of 21411341144 is 44114311412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411341141) 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, 6181157 + ... + 6184619.

It is an arithmetic number, because the mean of its divisors is an integer number (656566560).

Almost surely, 2^21411341144 is an apocalyptic number.

It is an amenable number.

21411341144 is a deficient number, since it is larger than the sum of its proper divisors (20608918696).

21411341144 is a wasteful number, since it uses less digits than its factorization.

21411341144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840 (or 3836 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

Adding to 21411341144 its reverse (44114311412), we get a palindrome (65525652556).

The spelling of 21411341144 in words is "twenty-one billion, four hundred eleven million, three hundred forty-one thousand, one hundred forty-four".