213232311012 has 96 divisors (see below), whose sum is σ = 593499174912. Its totient is φ = 58259241216.

The previous prime is 213232310969. The next prime is 213232311013. The reversal of 213232311012 is 210113232312.

213232311012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 213232311012.

It is not an unprimeable number, because it can be changed into a prime (213232311013) 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, 8598543 + ... + 8623305.

It is an arithmetic number, because the mean of its divisors is an integer number (6182283072).

Almost surely, 2^213232311012 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 213232311012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296749587456).

213232311012 is an abundant number, since it is smaller than the sum of its proper divisors (380266863900).

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

213232311012 is a wasteful number, since it uses less digits than its factorization.

213232311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29257 (or 29255 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213232311012 its reverse (210113232312), we get a palindrome (423345543324).

The spelling of 213232311012 in words is "two hundred thirteen billion, two hundred thirty-two million, three hundred eleven thousand, twelve".