21441513031053 has 4 divisors (see below), whose sum is σ = 28588684041408. Its totient is φ = 14294342020700.

The previous prime is 21441513030937. The next prime is 21441513031087. The reversal of 21441513031053 is 35013031514412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21441513031053 - 2⁹ = 21441513030541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441513031753) 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 3 ways as a sum of consecutive naturals, for example, 3573585505173 + ... + 3573585505178.

It is an arithmetic number, because the mean of its divisors is an integer number (7147171010352).

Almost surely, 2^{21441513031053} is an apocalyptic number.

It is an amenable number.

21441513031053 is a deficient number, since it is larger than the sum of its proper divisors (7147171010355).

21441513031053 is an equidigital number, since it uses as much as digits as its factorization.

21441513031053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7147171010354.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 21441513031053 its reverse (35013031514412), we get a palindrome (56454544545465).

The spelling of 21441513031053 in words is "twenty-one trillion, four hundred forty-one billion, five hundred thirteen million, thirty-one thousand, fifty-three".