1312347371 has 2 divisors, whose sum is σ = 1312347372. Its totient is φ = 1312347370.

The previous prime is 1312347359. The next prime is 1312347391. The reversal of 1312347371 is 1737432131.

It is a weak prime.

It is an emirp because it is prime and its reverse (1737432131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312347371 - 2²⁶ = 1245238507 is a prime.

It is a super-2 number, since 2×1312347371² = 3444511244341223282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312347341) 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 as a sum of consecutive naturals, namely, 656173685 + 656173686.

It is an arithmetic number, because the mean of its divisors is an integer number (656173686).

Almost surely, 2^1312347371 is an apocalyptic number.

1312347371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312347371 is an equidigital number, since it uses as much as digits as its factorization.

1312347371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 32.

The square root of 1312347371 is about 36226.3353239049. The cubic root of 1312347371 is about 1094.8373425885.

The spelling of 1312347371 in words is "one billion, three hundred twelve million, three hundred forty-seven thousand, three hundred seventy-one".