21411141441 has 16 divisors (see below), whose sum is σ = 28628356224. Its totient is φ = 14234050944.

The previous prime is 21411141431. The next prime is 21411141469. The reversal of 21411141441 is 14414111412.

It is not a de Polignac number, because 21411141441 - 2⁹ = 21411140929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21411141421) 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, 2810860 + ... + 2818466.

It is an arithmetic number, because the mean of its divisors is an integer number (1789272264).

Almost surely, 2^21411141441 is an apocalyptic number.

It is an amenable number.

21411141441 is a deficient number, since it is larger than the sum of its proper divisors (7217214783).

21411141441 is a wasteful number, since it uses less digits than its factorization.

21411141441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120.

The product of its digits is 512, while the sum is 24.

Adding to 21411141441 its reverse (14414111412), we get a palindrome (35825252853).

It can be divided in two parts, 214111 and 41441, that added together give a palindrome (255552).

The spelling of 21411141441 in words is "twenty-one billion, four hundred eleven million, one hundred forty-one thousand, four hundred forty-one".