30000100020 has 192 divisors, whose sum is σ = 93677617152. Its totient is φ = 7113859200.

The previous prime is 30000100001. The next prime is 30000100033. The reversal of 30000100020 is 2000100003.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 30000099981 and 30000100008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236221197 + ... + 236221323.

It is an arithmetic number, because the mean of its divisors is an integer number (487904256).

Almost surely, 2^30000100020 is an apocalyptic number.

30000100020 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 30000100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46838808576).

30000100020 is an abundant number, since it is smaller than the sum of its proper divisors (63677517132).

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

30000100020 is a wasteful number, since it uses less digits than its factorization.

30000100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

Adding to 30000100020 its reverse (2000100003), we get a palindrome (32000200023).

The spelling of 30000100020 in words is "thirty billion, one hundred thousand, twenty".