23112137 has 2 divisors, whose sum is σ = 23112138. Its totient is φ = 23112136.

The previous prime is 23112121. The next prime is 23112157. The reversal of 23112137 is 73121132.

It is an a-pointer prime, because the next prime (23112157) can be obtained adding 23112137 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15555136 + 7557001 = 3944^2 + 2749^2 .

It is a cyclic number.

It is not a de Polignac number, because 23112137 - 2⁴ = 23112121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23112157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556068 + 11556069.

It is an arithmetic number, because the mean of its divisors is an integer number (11556069).

Almost surely, 2^23112137 is an apocalyptic number.

It is an amenable number.

23112137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112137 is an equidigital number, since it uses as much as digits as its factorization.

23112137 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23112137 is about 4807.5083983286. The cubic root of 23112137 is about 284.8481267365.

Adding to 23112137 its reverse (73121132), we get a palindrome (96233269).

The spelling of 23112137 in words is "twenty-three million, one hundred twelve thousand, one hundred thirty-seven".