20200120122103 has 4 divisors (see below), whose sum is σ = 20202327553408. Its totient is φ = 20197912690800.

The previous prime is 20200120122101. The next prime is 20200120122137. The reversal of 20200120122103 is 30122102100202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20200120122103 - 2¹ = 20200120122101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200120122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103701926 + ... + 1103720227.

It is an arithmetic number, because the mean of its divisors is an integer number (5050581888352).

Almost surely, 2^{20200120122103} is an apocalyptic number.

20200120122103 is a deficient number, since it is larger than the sum of its proper divisors (2207431305).

20200120122103 is an equidigital number, since it uses as much as digits as its factorization.

20200120122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207431304.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20200120122103 its reverse (30122102100202), we get a palindrome (50322222222305).

The spelling of 20200120122103 in words is "twenty trillion, two hundred billion, one hundred twenty million, one hundred twenty-two thousand, one hundred three".