30111202100020 has 24 divisors (see below), whose sum is σ = 63233628872904. Its totient is φ = 12044460942336.

The previous prime is 30111202100011. The next prime is 30111202100039. The reversal of 30111202100020 is 2000120211103.

It can be written as a sum of positive squares in 4 ways, for example, as 1755619700004 + 28355582400016 = 1324998^2 + 5324996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20099704 + ... + 21545776.

It is an arithmetic number, because the mean of its divisors is an integer number (2634734536371).

Almost surely, 2^{30111202100020} is an apocalyptic number.

It is an amenable number.

30111202100020 is an abundant number, since it is smaller than the sum of its proper divisors (33122426772884).

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

30111202100020 is a wasteful number, since it uses less digits than its factorization.

30111202100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487219 (or 2487217 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30111202100020 its reverse (2000120211103), we get a palindrome (32111322311123).

The spelling of 30111202100020 in words is "thirty trillion, one hundred eleven billion, two hundred two million, one hundred thousand, twenty".