20200120203113 has 8 divisors (see below), whose sum is σ = 21392975194632. Its totient is φ = 19007777725696.

The previous prime is 20200120203103. The next prime is 20200120203121. The reversal of 20200120203113 is 31130202100202.

It can be written as a sum of positive squares in 4 ways, for example, as 258295699984 + 19941824503129 = 508228^2 + 4465627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20200120203113 - 2⁴ = 20200120203097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200120203091 and 20200120203100.

It is not an unprimeable number, because it can be changed into a prime (20200120203103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128047370 + ... + 128205027.

It is an arithmetic number, because the mean of its divisors is an integer number (2674121899329).

Almost surely, 2^{20200120203113} is an apocalyptic number.

It is an amenable number.

20200120203113 is a deficient number, since it is larger than the sum of its proper divisors (1192854991519).

20200120203113 is a wasteful number, since it uses less digits than its factorization.

20200120203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256257051.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20200120203113 its reverse (31130202100202), we get a palindrome (51330322303315).

The spelling of 20200120203113 in words is "twenty trillion, two hundred billion, one hundred twenty million, two hundred three thousand, one hundred thirteen".