12311400000 has 504 divisors, whose sum is σ = 43859817792. Its totient is φ = 3046400000.

The previous prime is 12311399981. The next prime is 12311400001. The reversal of 12311400000 is 411321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12311400001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 173399965 + ... + 173400035.

It is an arithmetic number, because the mean of its divisors is an integer number (87023448).

Almost surely, 2^12311400000 is an apocalyptic number.

12311400000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12311400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21929908896).

12311400000 is an abundant number, since it is smaller than the sum of its proper divisors (31548417792).

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

12311400000 is an frugal number, since it uses more digits than its factorization.

12311400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12311400000 its reverse (411321), we get a palindrome (12311811321).

The spelling of 12311400000 in words is "twelve billion, three hundred eleven million, four hundred thousand".