21241200044013 has 8 divisors (see below), whose sum is σ = 28855969871328. Its totient is φ = 13893615123024.

The previous prime is 21241200043979. The next prime is 21241200044087. The reversal of 21241200044013 is 31044000214212.

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

It is not a de Polignac number, because 21241200044013 - 2²⁵ = 21241166489581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241200044413) 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, 66796226395 + ... + 66796226712.

It is an arithmetic number, because the mean of its divisors is an integer number (3606996233916).

Almost surely, 2^{21241200044013} is an apocalyptic number.

It is an amenable number.

21241200044013 is a deficient number, since it is larger than the sum of its proper divisors (7614769827315).

21241200044013 is a wasteful number, since it uses less digits than its factorization.

21241200044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133592453163.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21241200044013 its reverse (31044000214212), we get a palindrome (52285200258225).

The spelling of 21241200044013 in words is "twenty-one trillion, two hundred forty-one billion, two hundred million, forty-four thousand, thirteen".