21442553033141 has 2 divisors, whose sum is σ = 21442553033142. Its totient is φ = 21442553033140.

The previous prime is 21442553033113. The next prime is 21442553033149. The reversal of 21442553033141 is 14133035524412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17819415903025 + 3623137130116 = 4221305^2 + 1903454^2 .

It is a cyclic number.

It is not a de Polignac number, because 21442553033141 - 2¹⁴ = 21442553016757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21442553033095 and 21442553033104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21442553033149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10721276516570 + 10721276516571.

It is an arithmetic number, because the mean of its divisors is an integer number (10721276516571).

Almost surely, 2^{21442553033141} is an apocalyptic number.

It is an amenable number.

21442553033141 is a deficient number, since it is larger than the sum of its proper divisors (1).

21442553033141 is an equidigital number, since it uses as much as digits as its factorization.

21442553033141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 21442553033141 its reverse (14133035524412), we get a palindrome (35575588557553).

The spelling of 21442553033141 in words is "twenty-one trillion, four hundred forty-two billion, five hundred fifty-three million, thirty-three thousand, one hundred forty-one".