123200023 has 2 divisors, whose sum is σ = 123200024. Its totient is φ = 123200022.

The previous prime is 123200017. The next prime is 123200041. The reversal of 123200023 is 320002321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123200023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123199976 and 123200012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123200723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600011 + 61600012.

It is an arithmetic number, because the mean of its divisors is an integer number (61600012).

Almost surely, 2^123200023 is an apocalyptic number.

123200023 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200023 is an equidigital number, since it uses as much as digits as its factorization.

123200023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 123200023 is about 11099.5505764873. The cubic root of 123200023 is about 497.5884179105.

Adding to 123200023 its reverse (320002321), we get a palindrome (443202344).

The spelling of 123200023 in words is "one hundred twenty-three million, two hundred thousand, twenty-three".