123023137 has 2 divisors, whose sum is σ = 123023138. Its totient is φ = 123023136.

The previous prime is 123023107. The next prime is 123023141. The reversal of 123023137 is 731320321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92948881 + 30074256 = 9641^2 + 5484^2 .

It is a cyclic number.

It is not a de Polignac number, because 123023137 - 2²³ = 114634529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123023107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511568 + 61511569.

It is an arithmetic number, because the mean of its divisors is an integer number (61511569).

Almost surely, 2^123023137 is an apocalyptic number.

It is an amenable number.

123023137 is a deficient number, since it is larger than the sum of its proper divisors (1).

123023137 is an equidigital number, since it uses as much as digits as its factorization.

123023137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 123023137 is about 11091.5795538778. The cubic root of 123023137 is about 497.3501642155.

Adding to 123023137 its reverse (731320321), we get a palindrome (854343458).

The spelling of 123023137 in words is "one hundred twenty-three million, twenty-three thousand, one hundred thirty-seven".