123126300000 has 432 divisors, whose sum is σ = 477472033584. Its totient is φ = 29846400000.

The previous prime is 123126299971. The next prime is 123126300023. The reversal of 123126300000 is 3621321.

123126300000 is a `hidden beast` number, since 1 + 2 + 31 + 2 + 630 + 0 + 0 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9893782 + ... + 9906218.

It is an arithmetic number, because the mean of its divisors is an integer number (1105259337).

Almost surely, 2^123126300000 is an apocalyptic number.

123126300000 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 123126300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238736016792).

123126300000 is an abundant number, since it is smaller than the sum of its proper divisors (354345733584).

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

123126300000 is a wasteful number, since it uses less digits than its factorization.

123126300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12489 (or 12458 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123126300000 its reverse (3621321), we get a palindrome (123129921321).

The spelling of 123126300000 in words is "one hundred twenty-three billion, one hundred twenty-six million, three hundred thousand".