20310211110120 has 128 divisors (see below), whose sum is σ = 64144486224000. Its totient is φ = 5130442506240.

The previous prime is 20310211110109. The next prime is 20310211110121. The reversal of 20310211110120 is 2101111201302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20310211110120.

It is not an unprimeable number, because it can be changed into a prime (20310211110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20680776 + ... + 21640584.

It is an arithmetic number, because the mean of its divisors is an integer number (501128798625).

Almost surely, 2^{20310211110120} is an apocalyptic number.

20310211110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310211110120 is an abundant number, since it is smaller than the sum of its proper divisors (43834275113880).

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

20310211110120 is a wasteful number, since it uses less digits than its factorization.

20310211110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969123 (or 969119 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20310211110120 its reverse (2101111201302), we get a palindrome (22411322311422).

The spelling of 20310211110120 in words is "twenty trillion, three hundred ten billion, two hundred eleven million, one hundred ten thousand, one hundred twenty".