117123755500 has 24 divisors (see below), whose sum is σ = 255798283104. Its totient is φ = 46849502000.

The previous prime is 117123755471. The next prime is 117123755501. The reversal of 117123755500 is 5557321711.

It is a self number, because there is not a number n which added to its sum of digits gives 117123755500.

It is not an unprimeable number, because it can be changed into a prime (117123755501) 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, 117123256 + ... + 117124255.

It is an arithmetic number, because the mean of its divisors is an integer number (10658261796).

Almost surely, 2^117123755500 is an apocalyptic number.

117123755500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117123755500 is an abundant number, since it is smaller than the sum of its proper divisors (138674527604).

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

117123755500 is a wasteful number, since it uses less digits than its factorization.

117123755500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234247530 (or 234247518 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 37.

The spelling of 117123755500 in words is "one hundred seventeen billion, one hundred twenty-three million, seven hundred fifty-five thousand, five hundred".