13321444024021 has 8 divisors (see below), whose sum is σ = 15236373801024. Its totient is φ = 11409480833280.

The previous prime is 13321444023991. The next prime is 13321444024079. The reversal of 13321444024021 is 12042044412331.

It is a happy number.

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 13321444024021 - 2⁵ = 13321444023989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321445024021) 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, 741636940 + ... + 741654901.

It is an arithmetic number, because the mean of its divisors is an integer number (1904546725128).

Almost surely, 2^{13321444024021} is an apocalyptic number.

It is an amenable number.

13321444024021 is a deficient number, since it is larger than the sum of its proper divisors (1914929777003).

13321444024021 is a wasteful number, since it uses less digits than its factorization.

13321444024021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483293131.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13321444024021 its reverse (12042044412331), we get a palindrome (25363488436352).

The spelling of 13321444024021 in words is "thirteen trillion, three hundred twenty-one billion, four hundred forty-four million, twenty-four thousand, twenty-one".