123255435052050 has 96 divisors (see below), whose sum is σ = 349349858928000. Its totient is φ = 28171966018560.

The previous prime is 123255435052049. The next prime is 123255435052067. The reversal of 123255435052050 is 50250534552321.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 123255435051993 and 123255435052011.

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 47 ways as a sum of consecutive naturals, for example, 41107276 + ... + 44003624.

It is an arithmetic number, because the mean of its divisors is an integer number (3639061030500).

Almost surely, 2^{123255435052050} is an apocalyptic number.

123255435052050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123255435052050 is an abundant number, since it is smaller than the sum of its proper divisors (226094423875950).

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

123255435052050 is a wasteful number, since it uses less digits than its factorization.

123255435052050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936900 (or 2936895 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 42.

The spelling of 123255435052050 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred thirty-five million, fifty-two thousand, fifty".