12310003231311 has 4 divisors (see below), whose sum is σ = 16413337641752. Its totient is φ = 8206668820872.

The previous prime is 12310003231231. The next prime is 12310003231313. The reversal of 12310003231311 is 11313230001321.

It is a happy number.

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

It is not a de Polignac number, because 12310003231311 - 2²⁶ = 12309936122447 is a prime.

It is a super-2 number, since 2×12310003231311² (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 (12310003231313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051667205216 + ... + 2051667205221.

It is an arithmetic number, because the mean of its divisors is an integer number (4103334410438).

Almost surely, 2^{12310003231311} is an apocalyptic number.

12310003231311 is a deficient number, since it is larger than the sum of its proper divisors (4103334410441).

12310003231311 is an equidigital number, since it uses as much as digits as its factorization.

12310003231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103334410440.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12310003231311 its reverse (11313230001321), we get a palindrome (23623233232632).

The spelling of 12310003231311 in words is "twelve trillion, three hundred ten billion, three million, two hundred thirty-one thousand, three hundred eleven".