1312312468 has 12 divisors (see below), whose sum is σ = 2301344640. Its totient is φ = 654785432.

The previous prime is 1312312457. The next prime is 1312312471. The reversal of 1312312468 is 8642132131.

It is a super-3 number, since 3×1312312468³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 340546 + ... + 344377.

It is an arithmetic number, because the mean of its divisors is an integer number (191778720).

Almost surely, 2^1312312468 is an apocalyptic number.

It is an amenable number.

1312312468 is a deficient number, since it is larger than the sum of its proper divisors (989032172).

1312312468 is a wasteful number, since it uses less digits than its factorization.

1312312468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685406 (or 685404 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 1312312468 is about 36225.8535855265. The cubic root of 1312312468 is about 1094.8276364575.

Adding to 1312312468 its reverse (8642132131), we get a palindrome (9954444599).

The spelling of 1312312468 in words is "one billion, three hundred twelve million, three hundred twelve thousand, four hundred sixty-eight".