31232201212000 has 192 divisors, whose sum is σ = 76880850883200. Its totient is φ = 12469568716800.

The previous prime is 31232201211989. The next prime is 31232201212007. The reversal of 31232201212000 is 21210223213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232201212007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8030906056 + ... + 8030909944.

It is an arithmetic number, because the mean of its divisors is an integer number (400421098350).

Almost surely, 2^{31232201212000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31232201212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38440425441600).

31232201212000 is an abundant number, since it is smaller than the sum of its proper divisors (45648649671200).

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

31232201212000 is a wasteful number, since it uses less digits than its factorization.

31232201212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146 (or 7128 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31232201212000 its reverse (21210223213), we get a palindrome (31253411435213).

The spelling of 31232201212000 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred one million, two hundred twelve thousand".