254743442123 has 2 divisors, whose sum is σ = 254743442124. Its totient is φ = 254743442122.

The previous prime is 254743442117. The next prime is 254743442143. The reversal of 254743442123 is 321244347452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254743442123 - 2³⁰ = 253669700299 is a prime.

It is a super-3 number, since 3×254743442123³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (254743442143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127371721061 + 127371721062.

It is an arithmetic number, because the mean of its divisors is an integer number (127371721062).

Almost surely, 2^254743442123 is an apocalyptic number.

254743442123 is a deficient number, since it is larger than the sum of its proper divisors (1).

254743442123 is an equidigital number, since it uses as much as digits as its factorization.

254743442123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 41.

Adding to 254743442123 its reverse (321244347452), we get a palindrome (575987789575).

The spelling of 254743442123 in words is "two hundred fifty-four billion, seven hundred forty-three million, four hundred forty-two thousand, one hundred twenty-three".