11123423723 has 2 divisors, whose sum is σ = 11123423724. Its totient is φ = 11123423722.

The previous prime is 11123423693. The next prime is 11123423747. The reversal of 11123423723 is 32732432111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11123423723 - 2⁶ = 11123423659 is a prime.

It is not a weakly prime, because it can be changed into another prime (11123425723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561711861 + 5561711862.

It is an arithmetic number, because the mean of its divisors is an integer number (5561711862).

Almost surely, 2^11123423723 is an apocalyptic number.

11123423723 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123423723 is an equidigital number, since it uses as much as digits as its factorization.

11123423723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

Adding to 11123423723 its reverse (32732432111), we get a palindrome (43855855834).

The spelling of 11123423723 in words is "eleven billion, one hundred twenty-three million, four hundred twenty-three thousand, seven hundred twenty-three".