100012012103 has 4 divisors (see below), whose sum is σ = 100017354360. Its totient is φ = 100006669848.

The previous prime is 100012012043. The next prime is 100012012157. The reversal of 100012012103 is 301210210001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301210210001 = 23 ⋅13096096087.

It is a cyclic number.

It is not a de Polignac number, because 100012012103 - 2²⁴ = 99995234887 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 (100012012183) 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, 2642948 + ... + 2680521.

It is an arithmetic number, because the mean of its divisors is an integer number (25004338590).

Almost surely, 2^100012012103 is an apocalyptic number.

100012012103 is a deficient number, since it is larger than the sum of its proper divisors (5342257).

100012012103 is an equidigital number, since it uses as much as digits as its factorization.

100012012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342256.

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

Adding to 100012012103 its reverse (301210210001), we get a palindrome (401222222104).

The spelling of 100012012103 in words is "one hundred billion, twelve million, twelve thousand, one hundred three".