212303001312 has 144 divisors (see below), whose sum is σ = 608351928912. Its totient is φ = 70227855360.

The previous prime is 212303001203. The next prime is 212303001329. The reversal of 212303001312 is 213100303212.

212303001312 is a `hidden beast` number, since 2 + 1 + 230 + 300 + 131 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42364887 + ... + 42369897.

It is an arithmetic number, because the mean of its divisors is an integer number (4224666173).

Almost surely, 2^212303001312 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 212303001312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304175964456).

212303001312 is an abundant number, since it is smaller than the sum of its proper divisors (396048927600).

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

212303001312 is a wasteful number, since it uses less digits than its factorization.

212303001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121 (or 6110 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212303001312 its reverse (213100303212), we get a palindrome (425403304524).

The spelling of 212303001312 in words is "two hundred twelve billion, three hundred three million, one thousand, three hundred twelve".