256042114123 has 2 divisors, whose sum is σ = 256042114124. Its totient is φ = 256042114122.

The previous prime is 256042114109. The next prime is 256042114177. The reversal of 256042114123 is 321411240652.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256042114123 is a prime.

It is not a weakly prime, because it can be changed into another prime (256042144123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128021057061 + 128021057062.

It is an arithmetic number, because the mean of its divisors is an integer number (128021057062).

Almost surely, 2^256042114123 is an apocalyptic number.

256042114123 is a deficient number, since it is larger than the sum of its proper divisors (1).

256042114123 is an equidigital number, since it uses as much as digits as its factorization.

256042114123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 256042114123 its reverse (321411240652), we get a palindrome (577453354775).

The spelling of 256042114123 in words is "two hundred fifty-six billion, forty-two million, one hundred fourteen thousand, one hundred twenty-three".