12331330311 has 4 divisors (see below), whose sum is σ = 16441773752. Its totient is φ = 8220886872.

The previous prime is 12331330301. The next prime is 12331330327. The reversal of 12331330311 is 11303313321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12331330311 - 2²² = 12327136007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331330301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2055221716 + ... + 2055221721.

It is an arithmetic number, because the mean of its divisors is an integer number (4110443438).

Almost surely, 2^12331330311 is an apocalyptic number.

12331330311 is a deficient number, since it is larger than the sum of its proper divisors (4110443441).

12331330311 is an equidigital number, since it uses as much as digits as its factorization.

12331330311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110443440.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 12331330311 its reverse (11303313321), we get a palindrome (23634643632).

The spelling of 12331330311 in words is "twelve billion, three hundred thirty-one million, three hundred thirty thousand, three hundred eleven".