23012117 has 2 divisors, whose sum is σ = 23012118. Its totient is φ = 23012116.

The previous prime is 23012089. The next prime is 23012149. The reversal of 23012117 is 71121032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22221796 + 790321 = 4714^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 23012117 - 2⁶ = 23012053 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23012095 and 23012104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23012617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506058 + 11506059.

It is an arithmetic number, because the mean of its divisors is an integer number (11506059).

Almost surely, 2^23012117 is an apocalyptic number.

It is an amenable number.

23012117 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012117 is an equidigital number, since it uses as much as digits as its factorization.

23012117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 23012117 is about 4797.0946415513. The cubic root of 23012117 is about 284.4366299948.

Adding to 23012117 its reverse (71121032), we get a palindrome (94133149).

The spelling of 23012117 in words is "twenty-three million, twelve thousand, one hundred seventeen".