13311201440021 has 8 divisors (see below), whose sum is σ = 14101627428504. Its totient is φ = 12521599244800.

The previous prime is 13311201439999. The next prime is 13311201440051. The reversal of 13311201440021 is 12004410211331.

It can be written as a sum of positive squares in 4 ways, for example, as 110775808900 + 13200425631121 = 332830^2 + 3633239^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13311201440021 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 (13311201440051) 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, 205915040 + ... + 205979673.

It is an arithmetic number, because the mean of its divisors is an integer number (1762703428563).

Almost surely, 2^{13311201440021} is an apocalyptic number.

It is an amenable number.

13311201440021 is a deficient number, since it is larger than the sum of its proper divisors (790425988483).

13311201440021 is a wasteful number, since it uses less digits than its factorization.

13311201440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411896631.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 13311201440021 its reverse (12004410211331), we get a palindrome (25315611651352).

The spelling of 13311201440021 in words is "thirteen trillion, three hundred eleven billion, two hundred one million, four hundred forty thousand, twenty-one".