13131221212313 has 8 divisors (see below), whose sum is σ = 13146208588800. Its totient is φ = 13116241356400.

The previous prime is 13131221212279. The next prime is 13131221212327. The reversal of 13131221212313 is 31321212213131.

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 13131221212313 - 2²² = 13131217018009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13131221214313) 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, 1617638 + ... + 5373936.

It is an arithmetic number, because the mean of its divisors is an integer number (1643276073600).

Almost surely, 2^{13131221212313} is an apocalyptic number.

It is an amenable number.

13131221212313 is a deficient number, since it is larger than the sum of its proper divisors (14987376487).

13131221212313 is a wasteful number, since it uses less digits than its factorization.

13131221212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760287.

The product of its digits is 1296, while the sum is 26.

Adding to 13131221212313 its reverse (31321212213131), we get a palindrome (44452433425444).

The spelling of 13131221212313 in words is "thirteen trillion, one hundred thirty-one billion, two hundred twenty-one million, two hundred twelve thousand, three hundred thirteen".