1312104343 has 4 divisors (see below), whose sum is σ = 1431386568. Its totient is φ = 1192822120.

The previous prime is 1312104301. The next prime is 1312104361. The reversal of 1312104343 is 3434012131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3434012131 = 11 ⋅312182921.

It is a cyclic number.

It is not a de Polignac number, because 1312104343 - 2²¹ = 1310007191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312104643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59641096 + ... + 59641117.

It is an arithmetic number, because the mean of its divisors is an integer number (357846642).

Almost surely, 2^1312104343 is an apocalyptic number.

1312104343 is a deficient number, since it is larger than the sum of its proper divisors (119282225).

1312104343 is a wasteful number, since it uses less digits than its factorization.

1312104343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119282224.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1312104343 is about 36222.9808685039. The cubic root of 1312104343 is about 1094.7697556671.

Adding to 1312104343 its reverse (3434012131), we get a palindrome (4746116474).

The spelling of 1312104343 in words is "one billion, three hundred twelve million, one hundred four thousand, three hundred forty-three".