1313130223 has 4 divisors (see below), whose sum is σ = 1382242360. Its totient is φ = 1244018088.

The previous prime is 1313130199. The next prime is 1313130241. The reversal of 1313130223 is 3220313131.

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-1313130223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 69112117 = 1313130223 / (1 + 3 + 1 + 3 + 1 + 3 + 0 + 2 + 2 + 3).

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 1313130223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313130263) 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, 34556040 + ... + 34556077.

It is an arithmetic number, because the mean of its divisors is an integer number (345560590).

Almost surely, 2^1313130223 is an apocalyptic number.

1313130223 is a deficient number, since it is larger than the sum of its proper divisors (69112137).

1313130223 is an equidigital number, since it uses as much as digits as its factorization.

1313130223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69112136.

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

The square root of 1313130223 is about 36237.1387253464. The cubic root of 1313130223 is about 1095.0549997047.

Adding to 1313130223 its reverse (3220313131), we get a palindrome (4533443354).

The spelling of 1313130223 in words is "one billion, three hundred thirteen million, one hundred thirty thousand, two hundred twenty-three".