1243103115 has 8 divisors (see below), whose sum is σ = 1988965008. Its totient is φ = 662988320.

The previous prime is 1243103107. The next prime is 1243103123. The reversal of 1243103115 is 5113013421.

It is an interprime number because it is at equal distance from previous prime (1243103107) and next prime (1243103123).

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

It is not a de Polignac number, because 1243103115 - 2³ = 1243103107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243103091 and 1243103100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41436756 + ... + 41436785.

It is an arithmetic number, because the mean of its divisors is an integer number (248620626).

Almost surely, 2^1243103115 is an apocalyptic number.

1243103115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1243103115 is a deficient number, since it is larger than the sum of its proper divisors (745861893).

1243103115 is an equidigital number, since it uses as much as digits as its factorization.

1243103115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82873549.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1243103115 is about 35257.6674639716. The cubic root of 1243103115 is about 1075.2325049644.

Adding to 1243103115 its reverse (5113013421), we get a palindrome (6356116536).

The spelling of 1243103115 in words is "one billion, two hundred forty-three million, one hundred three thousand, one hundred fifteen".