30121503412000 has 1152 divisors, whose sum is σ = 100849715366400. Its totient is φ = 8585201664000.

The previous prime is 30121503411971. The next prime is 30121503412069. The reversal of 30121503412000 is 21430512103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5673665346 + ... + 5673670654.

It is an arithmetic number, because the mean of its divisors is an integer number (87543155700).

Almost surely, 2^{30121503412000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30121503412000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50424857683200).

30121503412000 is an abundant number, since it is smaller than the sum of its proper divisors (70728211954400).

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

30121503412000 is a wasteful number, since it uses less digits than its factorization.

30121503412000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487 (or 5456 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 30121503412000 its reverse (21430512103), we get a palindrome (30142933924103).

It can be divided in two parts, 30121503 and 412000, that added together give a palindrome (30533503).

The spelling of 30121503412000 in words is "thirty trillion, one hundred twenty-one billion, five hundred three million, four hundred twelve thousand".