13331121313331 has 4 divisors (see below), whose sum is σ = 13362051989664. Its totient is φ = 13300190637000.

The previous prime is 13331121313297. The next prime is 13331121313333. The reversal of 13331121313331 is 13331312113331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13331121313331 - 2¹⁰ = 13331121312307 is a prime.

It is a super-2 number, since 2×13331121313331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13331121313294 and 13331121313303.

It is not an unprimeable number, because it can be changed into a prime (13331121313333) 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, 15465337520 + ... + 15465338381.

It is an arithmetic number, because the mean of its divisors is an integer number (3340512997416).

Almost surely, 2^{13331121313331} is an apocalyptic number.

13331121313331 is a deficient number, since it is larger than the sum of its proper divisors (30930676333).

13331121313331 is an equidigital number, since it uses as much as digits as its factorization.

13331121313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30930676332.

The product of its digits is 4374, while the sum is 29.

Adding to 13331121313331 its reverse (13331312113331), we get a palindrome (26662433426662).

The spelling of 13331121313331 in words is "thirteen trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred thirty-one".