1310143431 has 4 divisors (see below), whose sum is σ = 1746857912. Its totient is φ = 873428952.

The previous prime is 1310143409. The next prime is 1310143481. The reversal of 1310143431 is 1343410131.

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

It is not a de Polignac number, because 1310143431 - 2²⁷ = 1175925703 is a prime.

It is a super-2 number, since 2×1310143431² = 3432951619584903522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310143398 and 1310143407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310143481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218357236 + ... + 218357241.

It is an arithmetic number, because the mean of its divisors is an integer number (436714478).

Almost surely, 2^1310143431 is an apocalyptic number.

1310143431 is a deficient number, since it is larger than the sum of its proper divisors (436714481).

1310143431 is an equidigital number, since it uses as much as digits as its factorization.

1310143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436714480.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1310143431 is about 36195.9035113091. The cubic root of 1310143431 is about 1094.2241137309.

Adding to 1310143431 its reverse (1343410131), we get a palindrome (2653553562).

The spelling of 1310143431 in words is "one billion, three hundred ten million, one hundred forty-three thousand, four hundred thirty-one".