255205130123 has 4 divisors (see below), whose sum is σ = 255206360568. Its totient is φ = 255203899680.

The previous prime is 255205130111. The next prime is 255205130137. The reversal of 255205130123 is 321031502552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255205130123 - 2¹² = 255205126027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255205130723) 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, 219086 + ... + 747267.

It is an arithmetic number, because the mean of its divisors is an integer number (63801590142).

Almost surely, 2^255205130123 is an apocalyptic number.

255205130123 is a deficient number, since it is larger than the sum of its proper divisors (1230445).

255205130123 is an equidigital number, since it uses as much as digits as its factorization.

255205130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230444.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 255205130123 its reverse (321031502552), we get a palindrome (576236632675).

The spelling of 255205130123 in words is "two hundred fifty-five billion, two hundred five million, one hundred thirty thousand, one hundred twenty-three".