1312344943 has 8 divisors (see below), whose sum is σ = 1615193888. Its totient is φ = 1038338784.

The previous prime is 1312344941. The next prime is 1312344947. The reversal of 1312344943 is 3494432131.

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

It is not a de Polignac number, because 1312344943 - 2¹ = 1312344941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312344899 and 1312344908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312344941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7210596 + ... + 7210777.

It is an arithmetic number, because the mean of its divisors is an integer number (201899236).

Almost surely, 2^1312344943 is an apocalyptic number.

1312344943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312344943 is a deficient number, since it is larger than the sum of its proper divisors (302848945).

1312344943 is a wasteful number, since it uses less digits than its factorization.

1312344943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14421393.

The product of its digits is 31104, while the sum is 34.

The square root of 1312344943 is about 36226.3018123573. The cubic root of 1312344943 is about 1094.8366673947.

The spelling of 1312344943 in words is "one billion, three hundred twelve million, three hundred forty-four thousand, nine hundred forty-three".