123934745200 has 90 divisors (see below), whose sum is σ = 340340556344. Its totient is φ = 42485525760.

The previous prime is 123934745173. The next prime is 123934745201. The reversal of 123934745200 is 2547439321.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123934745201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18625074 + ... + 18631726.

Almost surely, 2^123934745200 is an apocalyptic number.

123934745200 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 123934745200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170170278172).

123934745200 is an abundant number, since it is smaller than the sum of its proper divisors (216405811144).

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

123934745200 is an frugal number, since it uses more digits than its factorization.

123934745200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 123934745200 in words is "one hundred twenty-three billion, nine hundred thirty-four million, seven hundred forty-five thousand, two hundred".