123000530254550 has 48 divisors (see below), whose sum is σ = 246394343815200. Its totient is φ = 45412848579840.

The previous prime is 123000530254531. The next prime is 123000530254571. The reversal of 123000530254550 is 55452035000321.

It is a self number, because there is not a number n which added to its sum of digits gives 123000530254550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5138879 + ... + 16504821.

It is an arithmetic number, because the mean of its divisors is an integer number (5133215496150).

Almost surely, 2^{123000530254550} is an apocalyptic number.

123000530254550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123000530254550 is an abundant number, since it is smaller than the sum of its proper divisors (123393813560650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123000530254550 is a wasteful number, since it uses less digits than its factorization.

123000530254550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382617 (or 11382612 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 123000530254550 its reverse (55452035000321), we get a palindrome (178452565254871).

The spelling of 123000530254550 in words is "one hundred twenty-three trillion, five hundred thirty million, two hundred fifty-four thousand, five hundred fifty".