123318642048 has 64 divisors (see below), whose sum is σ = 374360171520. Its totient is φ = 35233896960.

The previous prime is 123318642023. The next prime is 123318642053. The reversal of 123318642048 is 840246813321.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22936048 + ... + 22941423.

It is an arithmetic number, because the mean of its divisors is an integer number (5849377680).

Almost surely, 2^123318642048 is an apocalyptic number.

It is an amenable number.

123318642048 is an abundant number, since it is smaller than the sum of its proper divisors (251041529472).

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

123318642048 is an equidigital number, since it uses as much as digits as its factorization.

123318642048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45877495 (or 45877483 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 123318642048 in words is "one hundred twenty-three billion, three hundred eighteen million, six hundred forty-two thousand, forty-eight".