313130143 has 4 divisors (see below), whose sum is σ = 313970008. Its totient is φ = 312290280.

The previous prime is 313130113. The next prime is 313130159. The reversal of 313130143 is 341031313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313130143 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 313130143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313130113) 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, 419373 + ... + 420118.

It is an arithmetic number, because the mean of its divisors is an integer number (78492502).

Almost surely, 2^313130143 is an apocalyptic number.

313130143 is a deficient number, since it is larger than the sum of its proper divisors (839865).

313130143 is an equidigital number, since it uses as much as digits as its factorization.

313130143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839864.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 313130143 is about 17695.4836893485. The cubic root of 313130143 is about 679.0602235751.

Adding to 313130143 its reverse (341031313), we get a palindrome (654161456).

The spelling of 313130143 in words is "three hundred thirteen million, one hundred thirty thousand, one hundred forty-three".