212100113112313 has 4 divisors (see below), whose sum is σ = 212100142365540. Its totient is φ = 212100083859088.

The previous prime is 212100113112311. The next prime is 212100113112331. The reversal of 212100113112313 is 313211311001212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 119167177642384 + 92932935469929 = 10916372^2 + 9640173^2 .

It is a cyclic number.

It is not a de Polignac number, because 212100113112313 - 2¹ = 212100113112311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212100113112311) 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, 5279883 + ... + 21262111.

It is an arithmetic number, because the mean of its divisors is an integer number (53025035591385).

Almost surely, 2^{212100113112313} is an apocalyptic number.

It is an amenable number.

212100113112313 is a deficient number, since it is larger than the sum of its proper divisors (29253227).

212100113112313 is a wasteful number, since it uses less digits than its factorization.

212100113112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29253226.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 212100113112313 its reverse (313211311001212), we get a palindrome (525311424113525).

The spelling of 212100113112313 in words is "two hundred twelve trillion, one hundred billion, one hundred thirteen million, one hundred twelve thousand, three hundred thirteen".