21320044130001 has 8 divisors (see below), whose sum is σ = 28634219853984. Its totient is φ = 14109615579680.

The previous prime is 21320044129987. The next prime is 21320044130057. The reversal of 21320044130001 is 10003144002312.

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 21320044130001 - 2¹¹ = 21320044127953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21320044130001.

It is not an unprimeable number, because it can be changed into a prime (21320044130101) 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, 25936792935 + ... + 25936793756.

It is an arithmetic number, because the mean of its divisors is an integer number (3579277481748).

Almost surely, 2^{21320044130001} is an apocalyptic number.

It is an amenable number.

21320044130001 is a deficient number, since it is larger than the sum of its proper divisors (7314175723983).

21320044130001 is a wasteful number, since it uses less digits than its factorization.

21320044130001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51873586831.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21320044130001 its reverse (10003144002312), we get a palindrome (31323188132313).

The spelling of 21320044130001 in words is "twenty-one trillion, three hundred twenty billion, forty-four million, one hundred thirty thousand, one".