21443324131341 has 24 divisors (see below), whose sum is σ = 35596260348480. Its totient is φ = 12184873721856.

The previous prime is 21443324131319. The next prime is 21443324131357. The reversal of 21443324131341 is 14313142334412.

21443324131341 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 332 + 4 + 1 + 313 + 4 + 1 = 666.

It is not a de Polignac number, because 21443324131341 - 2¹⁴ = 21443324114957 is a prime.

It is a super-2 number, since 2×21443324131341² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21443324131296 and 21443324131305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21443324131741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950743540 + ... + 950766093.

It is an arithmetic number, because the mean of its divisors is an integer number (1483177514520).

Almost surely, 2^{21443324131341} is an apocalyptic number.

21443324131341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21443324131341 is a deficient number, since it is larger than the sum of its proper divisors (14152936217139).

21443324131341 is a wasteful number, since it uses less digits than its factorization.

21443324131341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901509825 (or 1901509822 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 21443324131341 its reverse (14313142334412), we get a palindrome (35756466465753).

The spelling of 21443324131341 in words is "twenty-one trillion, four hundred forty-three billion, three hundred twenty-four million, one hundred thirty-one thousand, three hundred forty-one".