21441224023143 has 8 divisors (see below), whose sum is σ = 29831268206208. Its totient is φ = 13672664594424.

The previous prime is 21441224023127. The next prime is 21441224023169. The reversal of 21441224023143 is 34132042214412.

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

It is not a de Polignac number, because 21441224023143 - 2⁴ = 21441224023127 is a prime.

It is a super-2 number, since 2×21441224023143² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441224023183) 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, 155371188505 + ... + 155371188642.

It is an arithmetic number, because the mean of its divisors is an integer number (3728908525776).

Almost surely, 2^{21441224023143} is an apocalyptic number.

21441224023143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21441224023143 is a deficient number, since it is larger than the sum of its proper divisors (8390044183065).

21441224023143 is a wasteful number, since it uses less digits than its factorization.

21441224023143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310742377173.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 21441224023143 its reverse (34132042214412), we get a palindrome (55573266237555).

The spelling of 21441224023143 in words is "twenty-one trillion, four hundred forty-one billion, two hundred twenty-four million, twenty-three thousand, one hundred forty-three".