1243316713 has 8 divisors (see below), whose sum is σ = 1261434816. Its totient is φ = 1225215600.

The previous prime is 1243316707. The next prime is 1243316719. The reversal of 1243316713 is 3176133421.

It is an interprime number because it is at equal distance from previous prime (1243316707) and next prime (1243316719).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1243316713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243316719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262698 + ... + 267388.

It is an arithmetic number, because the mean of its divisors is an integer number (157679352).

Almost surely, 2^1243316713 is an apocalyptic number.

It is an amenable number.

1243316713 is a deficient number, since it is larger than the sum of its proper divisors (18118103).

1243316713 is an equidigital number, since it uses as much as digits as its factorization.

1243316713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8495.

The product of its digits is 9072, while the sum is 31.

The square root of 1243316713 is about 35260.6964338483. The cubic root of 1243316713 is about 1075.2940859003.

It can be divided in two parts, 124331 and 6713, that added together give a square (131044 = 362²).

The spelling of 1243316713 in words is "one billion, two hundred forty-three million, three hundred sixteen thousand, seven hundred thirteen".