12311212014 has 96 divisors (see below), whose sum is σ = 28518643296. Its totient is φ = 3824916480.

The previous prime is 12311212009. The next prime is 12311212091. The reversal of 12311212014 is 41021211321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19953034 + ... + 19953650.

It is an arithmetic number, because the mean of its divisors is an integer number (297069201).

Almost surely, 2^12311212014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12311212014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14259321648).

12311212014 is an abundant number, since it is smaller than the sum of its proper divisors (16207431282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311212014 is a wasteful number, since it uses less digits than its factorization.

12311212014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12311212014 its reverse (41021211321), we get a palindrome (53332423335).

The spelling of 12311212014 in words is "twelve billion, three hundred eleven million, two hundred twelve thousand, fourteen".