10120012103 has 4 divisors (see below), whose sum is σ = 10159389840. Its totient is φ = 10080634368.

The previous prime is 10120012099. The next prime is 10120012109. The reversal of 10120012103 is 30121002101.

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 10120012103 - 2² = 10120012099 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 (10120012109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19688483 + ... + 19688996.

It is an arithmetic number, because the mean of its divisors is an integer number (2539847460).

Almost surely, 2^10120012103 is an apocalyptic number.

10120012103 is a deficient number, since it is larger than the sum of its proper divisors (39377737).

10120012103 is an equidigital number, since it uses as much as digits as its factorization.

10120012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39377736.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10120012103 its reverse (30121002101), we get a palindrome (40241014204).

The spelling of 10120012103 in words is "ten billion, one hundred twenty million, twelve thousand, one hundred three".