254243103123 has 4 divisors (see below), whose sum is σ = 338990804168. Its totient is φ = 169495402080.

The previous prime is 254243103109. The next prime is 254243103137. The reversal of 254243103123 is 321301342452.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (254243103109) and next prime (254243103137).

It is not a de Polignac number, because 254243103123 - 2⁵ = 254243103091 is a prime.

It is a super-2 number, since 2×254243103123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254243103173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42373850518 + ... + 42373850523.

It is an arithmetic number, because the mean of its divisors is an integer number (84747701042).

Almost surely, 2^254243103123 is an apocalyptic number.

254243103123 is a deficient number, since it is larger than the sum of its proper divisors (84747701045).

254243103123 is an equidigital number, since it uses as much as digits as its factorization.

254243103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84747701044.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 254243103123 its reverse (321301342452), we get a palindrome (575544445575).

The spelling of 254243103123 in words is "two hundred fifty-four billion, two hundred forty-three million, one hundred three thousand, one hundred twenty-three".