30012320110020 has 96 divisors (see below), whose sum is σ = 85245283643520. Its totient is φ = 7888125772800.

The previous prime is 30012320109983. The next prime is 30012320110021. The reversal of 30012320110020 is 2001102321003.

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

It is not an unprimeable number, because it can be changed into a prime (30012320110021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3861495 + ... + 8656545.

It is an arithmetic number, because the mean of its divisors is an integer number (887971704620).

Almost surely, 2^{30012320110020} is an apocalyptic number.

30012320110020 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 30012320110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42622641821760).

30012320110020 is an abundant number, since it is smaller than the sum of its proper divisors (55232963533500).

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

30012320110020 is a wasteful number, since it uses less digits than its factorization.

30012320110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796565 (or 4796563 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30012320110020 its reverse (2001102321003), we get a palindrome (32013422431023).

The spelling of 30012320110020 in words is "thirty trillion, twelve billion, three hundred twenty million, one hundred ten thousand, twenty".