21141411344 has 40 divisors (see below), whose sum is σ = 43396784928. Its totient is φ = 9942981120.

The previous prime is 21141411323. The next prime is 21141411349. The reversal of 21141411344 is 44311414112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21141411349) 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, 452939 + ... + 497429.

Almost surely, 2^21141411344 is an apocalyptic number.

It is an amenable number.

21141411344 is an abundant number, since it is smaller than the sum of its proper divisors (22255373584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141411344 is a wasteful number, since it uses less digits than its factorization.

21141411344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46263 (or 46257 counting only the distinct ones).

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

Adding to 21141411344 its reverse (44311414112), we get a palindrome (65452825456).

The spelling of 21141411344 in words is "twenty-one billion, one hundred forty-one million, four hundred eleven thousand, three hundred forty-four".