213020031200 has 144 divisors (see below), whose sum is σ = 527057734896. Its totient is φ = 84060364800.

The previous prime is 213020031113. The next prime is 213020031221. The reversal of 213020031200 is 2130020312.

It is a happy number.

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, 56637320 + ... + 56641080.

It is an arithmetic number, because the mean of its divisors is an integer number (3660123159).

Almost surely, 2^213020031200 is an apocalyptic number.

213020031200 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 213020031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263528867448).

213020031200 is an abundant number, since it is smaller than the sum of its proper divisors (314037703696).

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

213020031200 is a wasteful number, since it uses less digits than its factorization.

213020031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717 (or 4704 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 213020031200 its reverse (2130020312), we get a palindrome (215150051512).

The spelling of 213020031200 in words is "two hundred thirteen billion, twenty million, thirty-one thousand, two hundred".