12311012111023 has 4 divisors (see below), whose sum is σ = 12311025769008. Its totient is φ = 12310998453040.

The previous prime is 12311012111011. The next prime is 12311012111071. The reversal of 12311012111023 is 32011121011321.

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 12311012111023 - 2⁹ = 12311012110511 is a prime.

It is a super-2 number, since 2×12311012111023² (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 (12311012111623) 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, 5373523 + ... + 7314148.

It is an arithmetic number, because the mean of its divisors is an integer number (3077756442252).

Almost surely, 2^{12311012111023} is an apocalyptic number.

12311012111023 is a deficient number, since it is larger than the sum of its proper divisors (13657985).

12311012111023 is an equidigital number, since it uses as much as digits as its factorization.

12311012111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13657984.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12311012111023 its reverse (32011121011321), we get a palindrome (44322133122344).

The spelling of 12311012111023 in words is "twelve trillion, three hundred eleven billion, twelve million, one hundred eleven thousand, twenty-three".