13311431121413 has 4 divisors (see below), whose sum is σ = 13510109197920. Its totient is φ = 13112753044908.

The previous prime is 13311431121409. The next prime is 13311431121467. The reversal of 13311431121413 is 31412113411331.

It is a happy number.

13311431121413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13311431121413 - 2² = 13311431121409 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 (13311431121403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99339038153 + ... + 99339038286.

It is an arithmetic number, because the mean of its divisors is an integer number (3377527299480).

Almost surely, 2^{13311431121413} is an apocalyptic number.

It is an amenable number.

13311431121413 is a deficient number, since it is larger than the sum of its proper divisors (198678076507).

13311431121413 is an equidigital number, since it uses as much as digits as its factorization.

13311431121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198678076506.

The product of its digits is 2592, while the sum is 29.

Adding to 13311431121413 its reverse (31412113411331), we get a palindrome (44723544532744).

The spelling of 13311431121413 in words is "thirteen trillion, three hundred eleven billion, four hundred thirty-one million, one hundred twenty-one thousand, four hundred thirteen".