123200712 has 48 divisors (see below), whose sum is σ = 351234000. Its totient is φ = 38905056.

The previous prime is 123200711. The next prime is 123200723. The reversal of 123200712 is 217002321.

123200712 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123200711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43662 + ... + 46397.

It is an arithmetic number, because the mean of its divisors is an integer number (7317375).

Almost surely, 2^123200712 is an apocalyptic number.

123200712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123200712 is an abundant number, since it is smaller than the sum of its proper divisors (228033288).

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

123200712 is a wasteful number, since it uses less digits than its factorization.

123200712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90090 (or 90083 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 123200712 is about 11099.5816137366. The cubic root of 123200712 is about 497.5893455017.

The spelling of 123200712 in words is "one hundred twenty-three million, two hundred thousand, seven hundred twelve".