12311023223131 has 8 divisors (see below), whose sum is σ = 12323843729424. Its totient is φ = 12298203168000.

The previous prime is 12311023223077. The next prime is 12311023223137. The reversal of 12311023223131 is 13132232011321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12311023223131 - 2¹¹ = 12311023221083 is a prime.

It is a super-2 number, since 2×12311023223131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12311023223096 and 12311023223105.

It is not an unprimeable number, because it can be changed into a prime (12311023223137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106436176 + ... + 106551778.

It is an arithmetic number, because the mean of its divisors is an integer number (1540480466178).

Almost surely, 2^{12311023223131} is an apocalyptic number.

12311023223131 is a deficient number, since it is larger than the sum of its proper divisors (12820506293).

12311023223131 is a wasteful number, since it uses less digits than its factorization.

12311023223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225581.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12311023223131 its reverse (13132232011321), we get a palindrome (25443255234452).

The spelling of 12311023223131 in words is "twelve trillion, three hundred eleven billion, twenty-three million, two hundred twenty-three thousand, one hundred thirty-one".