21443513043133 has 8 divisors (see below), whose sum is σ = 21446295164928. Its totient is φ = 21440731113984.

The previous prime is 21443513043097. The next prime is 21443513043143. The reversal of 21443513043133 is 33134031534412.

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

It is a cyclic number.

It is not a de Polignac number, because 21443513043133 - 2²⁹ = 21442976172221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21443513043092 and 21443513043101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21443513043143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467941060 + ... + 467986882.

It is an arithmetic number, because the mean of its divisors is an integer number (2680786895616).

Almost surely, 2^{21443513043133} is an apocalyptic number.

It is an amenable number.

21443513043133 is a deficient number, since it is larger than the sum of its proper divisors (2782121795).

21443513043133 is a wasteful number, since it uses less digits than its factorization.

21443513043133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96323.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 21443513043133 its reverse (33134031534412), we get a palindrome (54577544577545).

The spelling of 21443513043133 in words is "twenty-one trillion, four hundred forty-three billion, five hundred thirteen million, forty-three thousand, one hundred thirty-three".