1312312327 has 2 divisors, whose sum is σ = 1312312328. Its totient is φ = 1312312326.

The previous prime is 1312312259. The next prime is 1312312363. The reversal of 1312312327 is 7232132131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312312327 - 2¹⁹ = 1311788039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312312627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656156163 + 656156164.

It is an arithmetic number, because the mean of its divisors is an integer number (656156164).

Almost surely, 2^1312312327 is an apocalyptic number.

1312312327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312312327 is an equidigital number, since it uses as much as digits as its factorization.

1312312327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 25.

The square root of 1312312327 is about 36225.8516394025. The cubic root of 1312312327 is about 1094.8275972467.

Adding to 1312312327 its reverse (7232132131), we get a palindrome (8544444458).

The spelling of 1312312327 in words is "one billion, three hundred twelve million, three hundred twelve thousand, three hundred twenty-seven".