20120012120103 has 24 divisors (see below), whose sum is σ = 31209266353392. Its totient is φ = 11496148804224.

The previous prime is 20120012120081. The next prime is 20120012120119. The reversal of 20120012120103 is 30102121002102.

It is not a de Polignac number, because 20120012120103 - 2⁹ = 20120012119591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120012120303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4262400 + ... + 7642517.

It is an arithmetic number, because the mean of its divisors is an integer number (1300386098058).

Almost surely, 2^{20120012120103} is an apocalyptic number.

20120012120103 is a deficient number, since it is larger than the sum of its proper divisors (11089254233289).

20120012120103 is a wasteful number, since it uses less digits than its factorization.

20120012120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916431 (or 11916424 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20120012120103 its reverse (30102121002102), we get a palindrome (50222133122205).

The spelling of 20120012120103 in words is "twenty trillion, one hundred twenty billion, twelve million, one hundred twenty thousand, one hundred three".