30020120032320 has 336 divisors, whose sum is σ = 112670742562560. Its totient is φ = 7275856281600.

The previous prime is 30020120032289. The next prime is 30020120032333. The reversal of 30020120032320 is 2323002102003.

It is a happy number.

30020120032320 is a `hidden beast` number, since 30 + 0 + 201 + 200 + 3 + 232 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 30020120032293 and 30020120032302.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134243161 + ... + 134466599.

It is an arithmetic number, because the mean of its divisors is an integer number (335329590960).

Almost surely, 2^{30020120032320} is an apocalyptic number.

30020120032320 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 30020120032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56335371281280).

30020120032320 is an abundant number, since it is smaller than the sum of its proper divisors (82650622530240).

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

30020120032320 is a wasteful number, since it uses less digits than its factorization.

30020120032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227714 (or 227701 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30020120032320 its reverse (2323002102003), we get a palindrome (32343122134323).

The spelling of 30020120032320 in words is "thirty trillion, twenty billion, one hundred twenty million, thirty-two thousand, three hundred twenty".