1310143123 has 4 divisors (see below), whose sum is σ = 1314772888. Its totient is φ = 1305513360.

The previous prime is 1310143103. The next prime is 1310143127. The reversal of 1310143123 is 3213410131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1310143123 - 2⁵ = 1310143091 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 1310143123.

It is not an unprimeable number, because it can be changed into a prime (1310143127) 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, 2314458 + ... + 2315023.

It is an arithmetic number, because the mean of its divisors is an integer number (328693222).

Almost surely, 2^1310143123 is an apocalyptic number.

1310143123 is a deficient number, since it is larger than the sum of its proper divisors (4629765).

1310143123 is an equidigital number, since it uses as much as digits as its factorization.

1310143123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629764.

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

The square root of 1310143123 is about 36195.8992566838. The cubic root of 1310143123 is about 1094.2240279843.

Adding to 1310143123 its reverse (3213410131), we get a palindrome (4523553254).

The spelling of 1310143123 in words is "one billion, three hundred ten million, one hundred forty-three thousand, one hundred twenty-three".