1312101343 has 16 divisors (see below), whose sum is σ = 1534096960. Its totient is φ = 1099028736.

The previous prime is 1312101313. The next prime is 1312101347. The reversal of 1312101343 is 3431012131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312101343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312101343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312101347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43921 + ... + 67477.

It is an arithmetic number, because the mean of its divisors is an integer number (95881060).

Almost surely, 2^1312101343 is an apocalyptic number.

1312101343 is a deficient number, since it is larger than the sum of its proper divisors (221995617).

1312101343 is a wasteful number, since it uses less digits than its factorization.

1312101343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23746.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1312101343 is about 36222.9394583046. The cubic root of 1312101343 is about 1094.7689213047.

Adding to 1312101343 its reverse (3431012131), we get a palindrome (4743113474).

The spelling of 1312101343 in words is "one billion, three hundred twelve million, one hundred one thousand, three hundred forty-three".