12011311230000 has 400 divisors, whose sum is σ = 39341091520896. Its totient is φ = 3156261120000.

The previous prime is 12011311229999. The next prime is 12011311230007. The reversal of 12011311230000 is 3211311021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×12011311230000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12011311230007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3563128315 + ... + 3563131685.

Almost surely, 2^{12011311230000} is an apocalyptic number.

12011311230000 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 12011311230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19670545760448).

12011311230000 is an abundant number, since it is smaller than the sum of its proper divisors (27329780290896).

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

12011311230000 is a wasteful number, since it uses less digits than its factorization.

12011311230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102 (or 5081 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12011311230000 its reverse (3211311021), we get a palindrome (12014522541021).

The spelling of 12011311230000 in words is "twelve trillion, eleven billion, three hundred eleven million, two hundred thirty thousand".