268355123 has 2 divisors, whose sum is σ = 268355124. Its totient is φ = 268355122.

The previous prime is 268355093. The next prime is 268355137. The reversal of 268355123 is 321553862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268355123 - 2¹⁴ = 268338739 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (268355023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134177561 + 134177562.

It is an arithmetic number, because the mean of its divisors is an integer number (134177562).

Almost surely, 2^268355123 is an apocalyptic number.

268355123 is a deficient number, since it is larger than the sum of its proper divisors (1).

268355123 is an equidigital number, since it uses as much as digits as its factorization.

268355123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 268355123 is about 16381.5482479526. The cubic root of 268355123 is about 645.0152214824.

The spelling of 268355123 in words is "two hundred sixty-eight million, three hundred fifty-five thousand, one hundred twenty-three".