1312431334 has 8 divisors (see below), whose sum is σ = 1968811128. Its totient is φ = 656160960.

The previous prime is 1312431317. The next prime is 1312431343. The reversal of 1312431334 is 4331342131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1312431299 and 1312431308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17049 + ... + 53995.

It is an arithmetic number, because the mean of its divisors is an integer number (246101391).

Almost surely, 2^1312431334 is an apocalyptic number.

1312431334 is a deficient number, since it is larger than the sum of its proper divisors (656379794).

1312431334 is a wasteful number, since it uses less digits than its factorization.

1312431334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54710.

The product of its digits is 2592, while the sum is 25.

The square root of 1312431334 is about 36227.4941722444. The cubic root of 1312431334 is about 1094.8606910478.

Adding to 1312431334 its reverse (4331342131), we get a palindrome (5643773465).

The spelling of 1312431334 in words is "one billion, three hundred twelve million, four hundred thirty-one thousand, three hundred thirty-four".