30321100303020 has 144 divisors (see below), whose sum is σ = 92610492784992. Its totient is φ = 8029777674240.

The previous prime is 30321100303001. The next prime is 30321100303031. The reversal of 30321100303020 is 2030300112303.

30321100303020 is a `hidden beast` number, since 3 + 0 + 321 + 10 + 0 + 30 + 302 + 0 = 666.

It is a super-2 number, since 2×30321100303020² (a number of 28 digits) contains 22 as substring.

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 = 30321100302984 and 30321100303002.

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, 26945260 + ... + 28047980.

It is an arithmetic number, because the mean of its divisors is an integer number (643128422118).

Almost surely, 2^{30321100303020} is an apocalyptic number.

30321100303020 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 30321100303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46305246392496).

30321100303020 is an abundant number, since it is smaller than the sum of its proper divisors (62289392481972).

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

30321100303020 is a wasteful number, since it uses less digits than its factorization.

30321100303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103792 (or 1103787 counting only the distinct ones).

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

Adding to 30321100303020 its reverse (2030300112303), we get a palindrome (32351400415323).

The spelling of 30321100303020 in words is "thirty trillion, three hundred twenty-one billion, one hundred million, three hundred three thousand, twenty".