212003131320 has 96 divisors (see below), whose sum is σ = 707632117920. Its totient is φ = 55006214400.

The previous prime is 212003131303. The next prime is 212003131349. The reversal of 212003131320 is 23131300212.

212003131320 is a `hidden beast` number, since 21 + 200 + 313 + 132 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 212003131293 and 212003131302.

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, 7944756 + ... + 7971395.

It is an arithmetic number, because the mean of its divisors is an integer number (7371167895).

Almost surely, 2^212003131320 is an apocalyptic number.

212003131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212003131320 is an abundant number, since it is smaller than the sum of its proper divisors (495628986600).

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

212003131320 is a wasteful number, since it uses less digits than its factorization.

212003131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15916205 (or 15916198 counting only the distinct ones).

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

Adding to 212003131320 its reverse (23131300212), we get a palindrome (235134431532).

The spelling of 212003131320 in words is "two hundred twelve billion, three million, one hundred thirty-one thousand, three hundred twenty".