30301000020 has 120 divisors (see below), whose sum is σ = 95175045504. Its totient is φ = 8070093504.

The previous prime is 30301000019. The next prime is 30301000027. The reversal of 30301000020 is 2000010303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 30300999966 and 30301000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30301000027) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1321897 + ... + 1344623.

Almost surely, 2^30301000020 is an apocalyptic number.

30301000020 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 30301000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47587522752).

30301000020 is an abundant number, since it is smaller than the sum of its proper divisors (64874045484).

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

30301000020 is a wasteful number, since it uses less digits than its factorization.

30301000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23571 (or 23560 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 30301000020 its reverse (2000010303), we get a palindrome (32301010323).

The spelling of 30301000020 in words is "thirty billion, three hundred one million, twenty", and thus it is an aban number.