123071120 has 20 divisors (see below), whose sum is σ = 286140540. Its totient is φ = 49228416.

The previous prime is 123071119. The next prime is 123071197. The reversal of 123071120 is 21170321.

It can be written as a sum of positive squares in 2 ways, for example, as 28047616 + 95023504 = 5296^2 + 9748^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769115 + ... + 769274.

It is an arithmetic number, because the mean of its divisors is an integer number (14307027).

Almost surely, 2^123071120 is an apocalyptic number.

123071120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123071120 is an abundant number, since it is smaller than the sum of its proper divisors (163069420).

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

123071120 is a wasteful number, since it uses less digits than its factorization.

123071120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538402 (or 1538396 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 123071120 is about 11093.7423802791. The cubic root of 123071120 is about 497.4148166908.

The spelling of 123071120 in words is "one hundred twenty-three million, seventy-one thousand, one hundred twenty".