1310123112213 has 4 divisors (see below), whose sum is σ = 1746830816288. Its totient is φ = 873415408140.

The previous prime is 1310123112203. The next prime is 1310123112217. The reversal of 1310123112213 is 3122113210131.

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 not a de Polignac number, because 1310123112213 - 2⁴ = 1310123112197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310123112213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310123112217) 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, 218353852033 + ... + 218353852038.

It is an arithmetic number, because the mean of its divisors is an integer number (436707704072).

Almost surely, 2^{1310123112213} is an apocalyptic number.

It is an amenable number.

1310123112213 is a deficient number, since it is larger than the sum of its proper divisors (436707704075).

1310123112213 is an equidigital number, since it uses as much as digits as its factorization.

1310123112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436707704074.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1310123112213 its reverse (3122113210131), we get a palindrome (4432236322344).

The spelling of 1310123112213 in words is "one trillion, three hundred ten billion, one hundred twenty-three million, one hundred twelve thousand, two hundred thirteen".