12312100310011 has 4 divisors (see below), whose sum is σ = 12312265827400. Its totient is φ = 12311934792624.

The previous prime is 12312100309981. The next prime is 12312100310021. The reversal of 12312100310011 is 11001300121321.

It is a happy number.

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 12312100310011 - 2¹¹ = 12312100307963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312100310021) 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, 82647066 + ... + 82795903.

It is an arithmetic number, because the mean of its divisors is an integer number (3078066456850).

Almost surely, 2^{12312100310011} is an apocalyptic number.

12312100310011 is a deficient number, since it is larger than the sum of its proper divisors (165517389).

12312100310011 is an equidigital number, since it uses as much as digits as its factorization.

12312100310011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165517388.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12312100310011 its reverse (11001300121321), we get a palindrome (23313400431332).

The spelling of 12312100310011 in words is "twelve trillion, three hundred twelve billion, one hundred million, three hundred ten thousand, eleven".