123203720378 has 16 divisors (see below), whose sum is σ = 187057328640. Its totient is φ = 60855786000.

The previous prime is 123203720377. The next prime is 123203720401. The reversal of 123203720378 is 873027302321.

123203720378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (123203720371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072298 + ... + 1181621.

It is an arithmetic number, because the mean of its divisors is an integer number (11691083040).

Almost surely, 2^123203720378 is an apocalyptic number.

123203720378 is a deficient number, since it is larger than the sum of its proper divisors (63853608262).

123203720378 is a wasteful number, since it uses less digits than its factorization.

123203720378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254253.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 123203720378 in words is "one hundred twenty-three billion, two hundred three million, seven hundred twenty thousand, three hundred seventy-eight".