1243051113 has 8 divisors (see below), whose sum is σ = 1710866176. Its totient is φ = 801968400.

The previous prime is 1243051109. The next prime is 1243051127. The reversal of 1243051113 is 3111503421.

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

It is not a de Polignac number, because 1243051113 - 2² = 1243051109 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 1243051113.

It is not an unprimeable number, because it can be changed into a prime (1243051133) 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, 6682978 + ... + 6683163.

It is an arithmetic number, because the mean of its divisors is an integer number (213858272).

Almost surely, 2^1243051113 is an apocalyptic number.

It is an amenable number.

1243051113 is a deficient number, since it is larger than the sum of its proper divisors (467815063).

1243051113 is a wasteful number, since it uses less digits than its factorization.

1243051113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13366175.

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

The square root of 1243051113 is about 35256.9299996469. The cubic root of 1243051113 is about 1075.2175115661.

Adding to 1243051113 its reverse (3111503421), we get a palindrome (4354554534).

The spelling of 1243051113 in words is "one billion, two hundred forty-three million, fifty-one thousand, one hundred thirteen".