123030300312 has 96 divisors (see below), whose sum is σ = 342953498160. Its totient is φ = 39820032000.

The previous prime is 123030300299. The next prime is 123030300317. The reversal of 123030300312 is 213003030321.

123030300312 is a `hidden beast` number, since 1 + 23 + 0 + 30 + 300 + 312 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030300317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524112 + ... + 721632.

Almost surely, 2^123030300312 is an apocalyptic number.

123030300312 is a gapful number since it is divisible by the number (12) 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 123030300312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171476749080).

123030300312 is an abundant number, since it is smaller than the sum of its proper divisors (219923197848).

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

123030300312 is a wasteful number, since it uses less digits than its factorization.

123030300312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197785 (or 197778 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 123030300312 its reverse (213003030321), we get a palindrome (336033330633).

The spelling of 123030300312 in words is "one hundred twenty-three billion, thirty million, three hundred thousand, three hundred twelve".