13131321334301 has 4 divisors (see below), whose sum is σ = 13131329343132. Its totient is φ = 13131313325472.

The previous prime is 13131321334279. The next prime is 13131321334303. The reversal of 13131321334301 is 10343312313131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3926778192100 + 9204543142201 = 1981610^2 + 3033899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13131321334301 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 (13131321334303) 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, 553970 + ... + 5154563.

It is an arithmetic number, because the mean of its divisors is an integer number (3282832335783).

Almost surely, 2^{13131321334301} is an apocalyptic number.

It is an amenable number.

13131321334301 is a deficient number, since it is larger than the sum of its proper divisors (8008831).

13131321334301 is an equidigital number, since it uses as much as digits as its factorization.

13131321334301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008830.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 13131321334301 its reverse (10343312313131), we get a palindrome (23474633647432).

The spelling of 13131321334301 in words is "thirteen trillion, one hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-four thousand, three hundred one".