23423111 has 2 divisors, whose sum is σ = 23423112. Its totient is φ = 23423110.

The previous prime is 23423107. The next prime is 23423117. The reversal of 23423111 is 11132432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23423111 - 2² = 23423107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23423111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23423117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711555 + 11711556.

It is an arithmetic number, because the mean of its divisors is an integer number (11711556).

Almost surely, 2^23423111 is an apocalyptic number.

23423111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423111 is an equidigital number, since it uses as much as digits as its factorization.

23423111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 23423111 is about 4839.7428650704. The cubic root of 23423111 is about 286.1199840512.

Adding to 23423111 its reverse (11132432), we get a palindrome (34555543).

The spelling of 23423111 in words is "twenty-three million, four hundred twenty-three thousand, one hundred eleven".