212123103113 has 4 divisors (see below), whose sum is σ = 212140032720. Its totient is φ = 212106173508.

The previous prime is 212123103097. The next prime is 212123103119. The reversal of 212123103113 is 311301321212.

It is a happy number.

212123103113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212123103113 - 2⁴ = 212123103097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212123103119) 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 3 ways as a sum of consecutive naturals, for example, 8445995 + ... + 8471072.

It is an arithmetic number, because the mean of its divisors is an integer number (53035008180).

Almost surely, 2^212123103113 is an apocalyptic number.

It is an amenable number.

212123103113 is a deficient number, since it is larger than the sum of its proper divisors (16929607).

212123103113 is a wasteful number, since it uses less digits than its factorization.

212123103113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16929606.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212123103113 its reverse (311301321212), we get a palindrome (523424424325).

The spelling of 212123103113 in words is "two hundred twelve billion, one hundred twenty-three million, one hundred three thousand, one hundred thirteen".