12311144313 has 8 divisors (see below), whose sum is σ = 17677540608. Its totient is φ = 7576088784.

The previous prime is 12311144299. The next prime is 12311144383. The reversal of 12311144313 is 31344111321.

It is a happy number.

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

It is not a de Polignac number, because 12311144313 - 2¹² = 12311140217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12311144383) 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, 157835145 + ... + 157835222.

It is an arithmetic number, because the mean of its divisors is an integer number (2209692576).

Almost surely, 2^12311144313 is an apocalyptic number.

12311144313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12311144313 is a deficient number, since it is larger than the sum of its proper divisors (5366396295).

12311144313 is a wasteful number, since it uses less digits than its factorization.

12311144313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315670383.

The product of its digits is 864, while the sum is 24.

Adding to 12311144313 its reverse (31344111321), we get a palindrome (43655255634).

The spelling of 12311144313 in words is "twelve billion, three hundred eleven million, one hundred forty-four thousand, three hundred thirteen".