21443551141041 has 12 divisors (see below), whose sum is σ = 30974156003700. Its totient is φ = 14295637212000.

The previous prime is 21443551140997. The next prime is 21443551141079. The reversal of 21443551141041 is 14014115534412.

21443551141041 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 35 + 511 + 4 + 104 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10122075873441 + 11321475267600 = 3181521^2 + 3364740^2 .

It is not a de Polignac number, because 21443551141041 - 2¹⁰ = 21443551140017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21443551140987 and 21443551141005.

It is not an unprimeable number, because it can be changed into a prime (21443551141141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3111210 + ... + 7250291.

It is an arithmetic number, because the mean of its divisors is an integer number (2581179666975).

Almost surely, 2^{21443551141041} is an apocalyptic number.

It is an amenable number.

21443551141041 is a deficient number, since it is larger than the sum of its proper divisors (9530604862659).

21443551141041 is a wasteful number, since it uses less digits than its factorization.

21443551141041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10591456 (or 10591453 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Adding to 21443551141041 its reverse (14014115534412), we get a palindrome (35457666675453).

The spelling of 21443551141041 in words is "twenty-one trillion, four hundred forty-three billion, five hundred fifty-one million, one hundred forty-one thousand, forty-one".