2311212012000 has 192 divisors, whose sum is σ = 7572902658048. Its totient is φ = 616211520000.

The previous prime is 2311212011909. The next prime is 2311212012007. The reversal of 2311212012000 is 2102121132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311212012007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82437985 + ... + 82466015.

It is an arithmetic number, because the mean of its divisors is an integer number (39442201344).

Almost surely, 2^{2311212012000} is an apocalyptic number.

2311212012000 is a gapful number since it is divisible by the number (20) 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 2311212012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3786451329024).

2311212012000 is an abundant number, since it is smaller than the sum of its proper divisors (5261690646048).

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

2311212012000 is a wasteful number, since it uses less digits than its factorization.

2311212012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34930 (or 34912 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2311212012000 its reverse (2102121132), we get a palindrome (2313314133132).

The spelling of 2311212012000 in words is "two trillion, three hundred eleven billion, two hundred twelve million, twelve thousand".