1310231343 has 4 divisors (see below), whose sum is σ = 1746975128. Its totient is φ = 873487560.

The previous prime is 1310231341. The next prime is 1310231347. The reversal of 1310231343 is 3431320131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3431320131 = 3 ⋅1143773377.

It is not a de Polignac number, because 1310231343 - 2¹ = 1310231341 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 (1310231341) 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, 218371888 + ... + 218371893.

It is an arithmetic number, because the mean of its divisors is an integer number (436743782).

Almost surely, 2^1310231343 is an apocalyptic number.

1310231343 is a deficient number, since it is larger than the sum of its proper divisors (436743785).

1310231343 is an equidigital number, since it uses as much as digits as its factorization.

1310231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436743784.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1310231343 is about 36197.1178825055. The cubic root of 1310231343 is about 1094.2485877126.

Adding to 1310231343 its reverse (3431320131), we get a palindrome (4741551474).

The spelling of 1310231343 in words is "one billion, three hundred ten million, two hundred thirty-one thousand, three hundred forty-three".