21141241144 has 16 divisors (see below), whose sum is σ = 39672524520. Its totient is φ = 10561901280.

The previous prime is 21141241133. The next prime is 21141241217. The reversal of 21141241144 is 44114214112.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1079602 + ... + 1099009.

Almost surely, 2^21141241144 is an apocalyptic number.

It is an amenable number.

21141241144 is a deficient number, since it is larger than the sum of its proper divisors (18531283376).

21141241144 is a wasteful number, since it uses less digits than its factorization.

21141241144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179830 (or 2179826 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

Adding to 21141241144 its reverse (44114214112), we get a palindrome (65255455256).

The spelling of 21141241144 in words is "twenty-one billion, one hundred forty-one million, two hundred forty-one thousand, one hundred forty-four".