123147023 has 2 divisors, whose sum is σ = 123147024. Its totient is φ = 123147022.

The previous prime is 123147019. The next prime is 123147041. The reversal of 123147023 is 320741321.

It is a weak prime.

It is an emirp because it is prime and its reverse (320741321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123147023 - 2² = 123147019 is a prime.

It is equal to p_7010564 and since 123147023 and 7010564 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123147023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123147053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61573511 + 61573512.

It is an arithmetic number, because the mean of its divisors is an integer number (61573512).

Almost surely, 2^123147023 is an apocalyptic number.

123147023 is a deficient number, since it is larger than the sum of its proper divisors (1).

123147023 is an equidigital number, since it uses as much as digits as its factorization.

123147023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 123147023 is about 11097.1628356080. The cubic root of 123147023 is about 497.5170543719.

Adding to 123147023 its reverse (320741321), we get a palindrome (443888344).

The spelling of 123147023 in words is "one hundred twenty-three million, one hundred forty-seven thousand, twenty-three".