23112511 has 2 divisors, whose sum is σ = 23112512. Its totient is φ = 23112510.

The previous prime is 23112491. The next prime is 23112527. The reversal of 23112511 is 11521132.

It is an a-pointer prime, because the next prime (23112527) can be obtained adding 23112511 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23112511 - 2¹⁵ = 23079743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23112581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556255 + 11556256.

It is an arithmetic number, because the mean of its divisors is an integer number (11556256).

Almost surely, 2^23112511 is an apocalyptic number.

23112511 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112511 is an equidigital number, since it uses as much as digits as its factorization.

23112511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 16.

The square root of 23112511 is about 4807.5472956592. The cubic root of 23112511 is about 284.8496631965.

Adding to 23112511 its reverse (11521132), we get a palindrome (34633643).

The spelling of 23112511 in words is "twenty-three million, one hundred twelve thousand, five hundred eleven".