13131033120323 has 4 divisors (see below), whose sum is σ = 13206935046048. Its totient is φ = 13055131194600.

The previous prime is 13131033120319. The next prime is 13131033120349. The reversal of 13131033120323 is 32302133013131.

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 13131033120323 - 2² = 13131033120319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13131033120292 and 13131033120301.

It is not an unprimeable number, because it can be changed into a prime (13131033120313) 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, 37950962603 + ... + 37950962948.

It is an arithmetic number, because the mean of its divisors is an integer number (3301733761512).

Almost surely, 2^{13131033120323} is an apocalyptic number.

13131033120323 is a deficient number, since it is larger than the sum of its proper divisors (75901925725).

13131033120323 is an equidigital number, since it uses as much as digits as its factorization.

13131033120323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75901925724.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 13131033120323 its reverse (32302133013131), we get a palindrome (45433166133454).

The spelling of 13131033120323 in words is "thirteen trillion, one hundred thirty-one billion, thirty-three million, one hundred twenty thousand, three hundred twenty-three".