12231003312131 has 4 divisors (see below), whose sum is σ = 12265072959600. Its totient is φ = 12196933664664.

The previous prime is 12231003312119. The next prime is 12231003312161. The reversal of 12231003312131 is 13121330013221.

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 12231003312131 - 2¹⁸ = 12231003049987 is a prime.

It is a super-2 number, since 2×12231003312131² (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 = 12231003312097 and 12231003312106.

It is not an unprimeable number, because it can be changed into a prime (12231003312161) 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 3 ways as a sum of consecutive naturals, for example, 17034823196 + ... + 17034823913.

It is an arithmetic number, because the mean of its divisors is an integer number (3066268239900).

Almost surely, 2^{12231003312131} is an apocalyptic number.

12231003312131 is a deficient number, since it is larger than the sum of its proper divisors (34069647469).

12231003312131 is an equidigital number, since it uses as much as digits as its factorization.

12231003312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34069647468.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12231003312131 its reverse (13121330013221), we get a palindrome (25352333325352).

The spelling of 12231003312131 in words is "twelve trillion, two hundred thirty-one billion, three million, three hundred twelve thousand, one hundred thirty-one".