1312347367 has 4 divisors (see below), whose sum is σ = 1313374720. Its totient is φ = 1311320016.

The previous prime is 1312347359. The next prime is 1312347371. The reversal of 1312347367 is 7637432131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7637432131 = 7 ⋅1091061733.

It is a cyclic number.

It is not a de Polignac number, because 1312347367 - 2³ = 1312347359 is a prime.

It is a super-2 number, since 2×1312347367² = 3444511223343665378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312347167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511758 + ... + 514315.

It is an arithmetic number, because the mean of its divisors is an integer number (328343680).

Almost surely, 2^1312347367 is an apocalyptic number.

1312347367 is a deficient number, since it is larger than the sum of its proper divisors (1027353).

1312347367 is a wasteful number, since it uses less digits than its factorization.

1312347367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027352.

The product of its digits is 63504, while the sum is 37.

The square root of 1312347367 is about 36226.3352686964. The cubic root of 1312347367 is about 1094.8373414762.

Adding to 1312347367 its reverse (7637432131), we get a palindrome (8949779498).

It can be divided in two parts, 131234 and 7367, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 1312347367 in words is "one billion, three hundred twelve million, three hundred forty-seven thousand, three hundred sixty-seven".