13031212313 has 4 divisors (see below), whose sum is σ = 14892814080. Its totient is φ = 11169610548.

The previous prime is 13031212303. The next prime is 13031212333. The reversal of 13031212313 is 31321213031.

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 13031212313 - 2²⁰ = 13030163737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031212303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930800873 + ... + 930800886.

It is an arithmetic number, because the mean of its divisors is an integer number (3723203520).

Almost surely, 2^13031212313 is an apocalyptic number.

It is an amenable number.

13031212313 is a deficient number, since it is larger than the sum of its proper divisors (1861601767).

13031212313 is an equidigital number, since it uses as much as digits as its factorization.

13031212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861601766.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13031212313 its reverse (31321213031), we get a palindrome (44352425344).

The spelling of 13031212313 in words is "thirteen billion, thirty-one million, two hundred twelve thousand, three hundred thirteen".