123028735000 has 80 divisors (see below), whose sum is σ = 288451603440. Its totient is φ = 49178160000.

The previous prime is 123028734991. The next prime is 123028735003. The reversal of 123028735000 is 537820321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123028735003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8177485 + ... + 8192515.

It is an arithmetic number, because the mean of its divisors is an integer number (3605645043).

Almost surely, 2^123028735000 is an apocalyptic number.

123028735000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123028735000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144225801720).

123028735000 is an abundant number, since it is smaller than the sum of its proper divisors (165422868440).

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

123028735000 is a wasteful number, since it uses less digits than its factorization.

123028735000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16694 (or 16675 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 123028735000 in words is "one hundred twenty-three billion, twenty-eight million, seven hundred thirty-five thousand".