1244343113 has 6 divisors (see below), whose sum is σ = 1347424974. Its totient is φ = 1148624256.

The previous prime is 1244343109. The next prime is 1244343127. The reversal of 1244343113 is 3113434421.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 147938569 + 1096404544 = 12163^2 + 33112^2 .

It is not a de Polignac number, because 1244343113 - 2² = 1244343109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244343413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3681320 + ... + 3681657.

It is an arithmetic number, because the mean of its divisors is an integer number (224570829).

Almost surely, 2^1244343113 is an apocalyptic number.

1244343113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1244343113 is a deficient number, since it is larger than the sum of its proper divisors (103081861).

1244343113 is an equidigital number, since it uses as much as digits as its factorization.

1244343113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363003 (or 7362990 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 1244343113 is about 35275.2478800646. The cubic root of 1244343113 is about 1075.5899017260.

Adding to 1244343113 its reverse (3113434421), we get a palindrome (4357777534).

The spelling of 1244343113 in words is "one billion, two hundred forty-four million, three hundred forty-three thousand, one hundred thirteen".