12010311321 has 8 divisors (see below), whose sum is σ = 16015962144. Its totient is φ = 8005767360.

The previous prime is 12010311319. The next prime is 12010311323. The reversal of 12010311321 is 12311301021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12010311319) and next prime (12010311323).

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

It is not a de Polignac number, because 12010311321 - 2¹ = 12010311319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010311321.

It is not an unprimeable number, because it can be changed into a prime (12010311323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251056 + ... + 295041.

It is an arithmetic number, because the mean of its divisors is an integer number (2001995268).

Almost surely, 2^12010311321 is an apocalyptic number.

It is an amenable number.

12010311321 is a deficient number, since it is larger than the sum of its proper divisors (4005650823).

12010311321 is an equidigital number, since it uses as much as digits as its factorization.

12010311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553431.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12010311321 its reverse (12311301021), we get a palindrome (24321612342).

The spelling of 12010311321 in words is "twelve billion, ten million, three hundred eleven thousand, three hundred twenty-one".