12331401311 has 4 divisors (see below), whose sum is σ = 12344506824. Its totient is φ = 12318295800.

The previous prime is 12331401301. The next prime is 12331401361. The reversal of 12331401311 is 11310413321.

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 12331401311 - 2²² = 12327207007 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 (12331401301) 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, 6551345 + ... + 6553226.

It is an arithmetic number, because the mean of its divisors is an integer number (3086126706).

Almost surely, 2^12331401311 is an apocalyptic number.

12331401311 is a deficient number, since it is larger than the sum of its proper divisors (13105513).

12331401311 is an equidigital number, since it uses as much as digits as its factorization.

12331401311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13105512.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12331401311 its reverse (11310413321), we get a palindrome (23641814632).

The spelling of 12331401311 in words is "twelve billion, three hundred thirty-one million, four hundred one thousand, three hundred eleven".