12311141321 has 12 divisors (see below), whose sum is σ = 12787190676. Its totient is φ = 11852098560.

The previous prime is 12311141263. The next prime is 12311141357. The reversal of 12311141321 is 12314111321.

It can be written as a sum of positive squares in 2 ways, for example, as 7910145721 + 4400995600 = 88939^2 + 66340^2 .

It is not a de Polignac number, because 12311141321 - 2¹⁰ = 12311140297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12311141293 and 12311141302.

It is not an unprimeable number, because it can be changed into a prime (12311101321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152285 + ... + 218661.

It is an arithmetic number, because the mean of its divisors is an integer number (1065599223).

Almost surely, 2^12311141321 is an apocalyptic number.

It is an amenable number.

12311141321 is a deficient number, since it is larger than the sum of its proper divisors (476049355).

12311141321 is an equidigital number, since it uses as much as digits as its factorization.

12311141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66632 (or 66601 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 12311141321 its reverse (12314111321), we get a palindrome (24625252642).

The spelling of 12311141321 in words is "twelve billion, three hundred eleven million, one hundred forty-one thousand, three hundred twenty-one".