1312230231313 has 4 divisors (see below), whose sum is σ = 1319561126640. Its totient is φ = 1304899335988.

The previous prime is 1312230231293. The next prime is 1312230231341. The reversal of 1312230231313 is 3131320322131.

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 1312230231313 - 2⁵ = 1312230231281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312230231413) 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, 3665447395 + ... + 3665447752.

It is an arithmetic number, because the mean of its divisors is an integer number (329890281660).

Almost surely, 2^{1312230231313} is an apocalyptic number.

It is an amenable number.

1312230231313 is a deficient number, since it is larger than the sum of its proper divisors (7330895327).

1312230231313 is an equidigital number, since it uses as much as digits as its factorization.

1312230231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330895326.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1312230231313 its reverse (3131320322131), we get a palindrome (4443550553444).

The spelling of 1312230231313 in words is "one trillion, three hundred twelve billion, two hundred thirty million, two hundred thirty-one thousand, three hundred thirteen".