11400109243 has 2 divisors, whose sum is σ = 11400109244. Its totient is φ = 11400109242.

The previous prime is 11400109213. The next prime is 11400109267. The reversal of 11400109243 is 34290100411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11400109243 - 2⁵ = 11400109211 is a prime.

It is not a weakly prime, because it can be changed into another prime (11400109213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700054621 + 5700054622.

It is an arithmetic number, because the mean of its divisors is an integer number (5700054622).

Almost surely, 2^11400109243 is an apocalyptic number.

11400109243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400109243 is an equidigital number, since it uses as much as digits as its factorization.

11400109243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 11400109243 its reverse (34290100411), we get a palindrome (45690209654).

The spelling of 11400109243 in words is "eleven billion, four hundred million, one hundred nine thousand, two hundred forty-three".