1313125143 has 16 divisors (see below), whose sum is σ = 1922656512. Its totient is φ = 790560000.

The previous prime is 1313125141. The next prime is 1313125147. The reversal of 1313125143 is 3415213131.

It is not a de Polignac number, because 1313125143 - 2¹ = 1313125141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313125141) 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, 126778 + ... + 136743.

It is an arithmetic number, because the mean of its divisors is an integer number (120166032).

Almost surely, 2^1313125143 is an apocalyptic number.

1313125143 is a deficient number, since it is larger than the sum of its proper divisors (609531369).

1313125143 is a wasteful number, since it uses less digits than its factorization.

1313125143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263686.

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

The square root of 1313125143 is about 36237.0686314442. The cubic root of 1313125143 is about 1095.0535875862.

Adding to 1313125143 its reverse (3415213131), we get a palindrome (4728338274).

The spelling of 1313125143 in words is "one billion, three hundred thirteen million, one hundred twenty-five thousand, one hundred forty-three".