11131423243 has 8 divisors (see below), whose sum is σ = 11212921440. Its totient is φ = 11050102080.

The previous prime is 11131423231. The next prime is 11131423253. The reversal of 11131423243 is 34232413111.

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-11131423243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131423213) 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, 83293 + ... + 170881.

It is an arithmetic number, because the mean of its divisors is an integer number (1401615180).

Almost surely, 2^11131423243 is an apocalyptic number.

11131423243 is a deficient number, since it is larger than the sum of its proper divisors (81498197).

11131423243 is an equidigital number, since it uses as much as digits as its factorization.

11131423243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88517.

The product of its digits is 1728, while the sum is 25.

Adding to 11131423243 its reverse (34232413111), we get a palindrome (45363836354).

The spelling of 11131423243 in words is "eleven billion, one hundred thirty-one million, four hundred twenty-three thousand, two hundred forty-three".