1312310322123 has 4 divisors (see below), whose sum is σ = 1749747096168. Its totient is φ = 874873548080.

The previous prime is 1312310322107. The next prime is 1312310322139. The reversal of 1312310322123 is 3212230132131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1312310322107) and next prime (1312310322139).

It is a cyclic number.

It is not a de Polignac number, because 1312310322123 - 2⁴ = 1312310322107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312310322093 and 1312310322102.

It is not an unprimeable number, because it can be changed into a prime (1312310322163) 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, 218718387018 + ... + 218718387023.

It is an arithmetic number, because the mean of its divisors is an integer number (437436774042).

Almost surely, 2^{1312310322123} is an apocalyptic number.

1312310322123 is a deficient number, since it is larger than the sum of its proper divisors (437436774045).

1312310322123 is an equidigital number, since it uses as much as digits as its factorization.

1312310322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437436774044.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1312310322123 its reverse (3212230132131), we get a palindrome (4524540454254).

The spelling of 1312310322123 in words is "one trillion, three hundred twelve billion, three hundred ten million, three hundred twenty-two thousand, one hundred twenty-three".