123205452050 has 24 divisors (see below), whose sum is σ = 229263348900. Its totient is φ = 49260415680.

The previous prime is 123205452037. The next prime is 123205452067. The reversal of 123205452050 is 50254502321.

It can be written as a sum of positive squares in 6 ways, for example, as 55184117569 + 68021334481 = 234913^2 + 260809^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429545 + ... + 656444.

Almost surely, 2^123205452050 is an apocalyptic number.

123205452050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123205452050 is a deficient number, since it is larger than the sum of its proper divisors (106057896850).

123205452050 is a wasteful number, since it uses less digits than its factorization.

123205452050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088270 (or 1088265 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 123205452050 its reverse (50254502321), we get a palindrome (173459954371).

The spelling of 123205452050 in words is "one hundred twenty-three billion, two hundred five million, four hundred fifty-two thousand, fifty".