13311423320121 has 16 divisors (see below), whose sum is σ = 19723799438400. Its totient is φ = 8872854679584.

The previous prime is 13311423320093. The next prime is 13311423320171. The reversal of 13311423320121 is 12102332411331.

13311423320121 is a `hidden beast` number, since 1 + 3 + 3 + 11 + 423 + 3 + 201 + 21 = 666.

It is not a de Polignac number, because 13311423320121 - 2¹⁵ = 13311423287353 is a prime.

It is a super-2 number, since 2×13311423320121² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13311423320171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39482751 + ... + 39818468.

It is an arithmetic number, because the mean of its divisors is an integer number (1232737464900).

Almost surely, 2^{13311423320121} is an apocalyptic number.

It is an amenable number.

13311423320121 is a deficient number, since it is larger than the sum of its proper divisors (6412376118279).

13311423320121 is an equidigital number, since it uses as much as digits as its factorization.

13311423320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79307445 (or 79307439 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 13311423320121 its reverse (12102332411331), we get a palindrome (25413755731452).

The spelling of 13311423320121 in words is "thirteen trillion, three hundred eleven billion, four hundred twenty-three million, three hundred twenty thousand, one hundred twenty-one".