20010030030 has 96 divisors (see below), whose sum is σ = 55128340800. Its totient is φ = 5018305536.

The previous prime is 20010030011. The next prime is 20010030037. The reversal of 20010030030 is 3003001002.

It is a happy number.

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

20010030030 is a modest number, since divided by 30030 gives 20010 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20010029994 and 20010030021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010030037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2381076 + ... + 2389464.

It is an arithmetic number, because the mean of its divisors is an integer number (574253550).

Almost surely, 2^20010030030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010030030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27564170400).

20010030030 is an abundant number, since it is smaller than the sum of its proper divisors (35118310770).

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

20010030030 is a wasteful number, since it uses less digits than its factorization.

20010030030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9978 (or 9975 counting only the distinct ones).

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

Adding to 20010030030 its reverse (3003001002), we get a palindrome (23013031032).

The spelling of 20010030030 in words is "twenty billion, ten million, thirty thousand, thirty".