1312351143 has 8 divisors (see below), whose sum is σ = 1750598256. Its totient is φ = 874502400.

The previous prime is 1312351111. The next prime is 1312351163. The reversal of 1312351143 is 3411532131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312351143 - 2⁵ = 1312351111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312351163) 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 7 ways as a sum of consecutive naturals, for example, 91818 + ... + 105143.

It is an arithmetic number, because the mean of its divisors is an integer number (218824782).

Almost surely, 2^1312351143 is an apocalyptic number.

1312351143 is a deficient number, since it is larger than the sum of its proper divisors (438247113).

1312351143 is a wasteful number, since it uses less digits than its factorization.

1312351143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199185.

The product of its digits is 1080, while the sum is 24.

The square root of 1312351143 is about 36226.3873854405. The cubic root of 1312351143 is about 1094.8383915289.

Adding to 1312351143 its reverse (3411532131), we get a palindrome (4723883274).

The spelling of 1312351143 in words is "one billion, three hundred twelve million, three hundred fifty-one thousand, one hundred forty-three".