20201102234120 has 16 divisors (see below), whose sum is σ = 45452480026860. Its totient is φ = 8080440893632.

The previous prime is 20201102234069. The next prime is 20201102234161. The reversal of 20201102234120 is 2143220110202.

It can be written as a sum of positive squares in 2 ways, for example, as 17281097958916 + 2920004275204 = 4157054^2 + 1708802^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20201102234092 and 20201102234101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252513777887 + ... + 252513777966.

Almost surely, 2^{20201102234120} is an apocalyptic number.

20201102234120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201102234120 is an abundant number, since it is smaller than the sum of its proper divisors (25251377792740).

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

20201102234120 is a wasteful number, since it uses less digits than its factorization.

20201102234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505027555864 (or 505027555860 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20201102234120 its reverse (2143220110202), we get a palindrome (22344322344322).

The spelling of 20201102234120 in words is "twenty trillion, two hundred one billion, one hundred two million, two hundred thirty-four thousand, one hundred twenty".