11540424223 has 2 divisors, whose sum is σ = 11540424224. Its totient is φ = 11540424222.

The previous prime is 11540424221. The next prime is 11540424239. The reversal of 11540424223 is 32242404511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11540424223 - 2¹ = 11540424221 is a prime.

Together with 11540424221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11540424191 and 11540424200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11540424221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5770212111 + 5770212112.

It is an arithmetic number, because the mean of its divisors is an integer number (5770212112).

Almost surely, 2^11540424223 is an apocalyptic number.

11540424223 is a deficient number, since it is larger than the sum of its proper divisors (1).

11540424223 is an equidigital number, since it uses as much as digits as its factorization.

11540424223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 11540424223 its reverse (32242404511), we get a palindrome (43782828734).

The spelling of 11540424223 in words is "eleven billion, five hundred forty million, four hundred twenty-four thousand, two hundred twenty-three".