23111723 has 2 divisors, whose sum is σ = 23111724. Its totient is φ = 23111722.

The previous prime is 23111719. The next prime is 23111731. The reversal of 23111723 is 32711132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23111723 - 2² = 23111719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23111695 and 23111704.

It is not a weakly prime, because it can be changed into another prime (23111743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11555861 + 11555862.

It is an arithmetic number, because the mean of its divisors is an integer number (11555862).

Almost surely, 2^23111723 is an apocalyptic number.

23111723 is a deficient number, since it is larger than the sum of its proper divisors (1).

23111723 is an equidigital number, since it uses as much as digits as its factorization.

23111723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 20.

The square root of 23111723 is about 4807.4653404887. The cubic root of 23111723 is about 284.8464259298.

Adding to 23111723 its reverse (32711132), we get a palindrome (55822855).

The spelling of 23111723 in words is "twenty-three million, one hundred eleven thousand, seven hundred twenty-three".