12311311013101 has 4 divisors (see below), whose sum is σ = 12735838979100. Its totient is φ = 11886783047104.

The previous prime is 12311311013087. The next prime is 12311311013123. The reversal of 12311311013101 is 10131011311321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9327227510601 + 2984083502500 = 3054051^2 + 1727450^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311311013101 - 2²⁹ = 12310774142189 is a prime.

It is a super-2 number, since 2×12311311013101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311311013161) 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, 212263982956 + ... + 212263983013.

It is an arithmetic number, because the mean of its divisors is an integer number (3183959744775).

Almost surely, 2^{12311311013101} is an apocalyptic number.

It is an amenable number.

12311311013101 is a deficient number, since it is larger than the sum of its proper divisors (424527965999).

12311311013101 is an equidigital number, since it uses as much as digits as its factorization.

12311311013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424527965998.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 12311311013101 its reverse (10131011311321), we get a palindrome (22442322324422).

The spelling of 12311311013101 in words is "twelve trillion, three hundred eleven billion, three hundred eleven million, thirteen thousand, one hundred one".