123911273 has 2 divisors, whose sum is σ = 123911274. Its totient is φ = 123911272.

The previous prime is 123911237. The next prime is 123911299. The reversal of 123911273 is 372119321.

Together with previous prime (123911237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121264144 + 2647129 = 11012^2 + 1627^2 .

It is a cyclic number.

It is not a de Polignac number, because 123911273 - 2⁸ = 123911017 is a prime.

It is not a weakly prime, because it can be changed into another prime (123911773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61955636 + 61955637.

It is an arithmetic number, because the mean of its divisors is an integer number (61955637).

Almost surely, 2^123911273 is an apocalyptic number.

It is an amenable number.

123911273 is a deficient number, since it is larger than the sum of its proper divisors (1).

123911273 is an equidigital number, since it uses as much as digits as its factorization.

123911273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 123911273 is about 11131.5440528257. The cubic root of 123911273 is about 498.5441289936.

The spelling of 123911273 in words is "one hundred twenty-three million, nine hundred eleven thousand, two hundred seventy-three".