30012123300000 has 288 divisors, whose sum is σ = 98612140169088. Its totient is φ = 7991760000000.

The previous prime is 30012123299989. The next prime is 30012123300037. The reversal of 30012123300000 is 332121003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210228645 + ... + 210371355.

It is an arithmetic number, because the mean of its divisors is an integer number (342403264476).

Almost surely, 2^{30012123300000} is an apocalyptic number.

30012123300000 is a gapful number since it is divisible by the number (30) 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 30012123300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49306070084544).

30012123300000 is an abundant number, since it is smaller than the sum of its proper divisors (68600016869088).

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

30012123300000 is an equidigital number, since it uses as much as digits as its factorization.

30012123300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143450 (or 143422 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30012123300000 its reverse (332121003), we get a palindrome (30012455421003).

The spelling of 30012123300000 in words is "thirty trillion, twelve billion, one hundred twenty-three million, three hundred thousand".