213131302200 has 72 divisors (see below), whose sum is σ = 715765962600. Its totient is φ = 56835013440.

The previous prime is 213131302171. The next prime is 213131302229. The reversal of 213131302200 is 2203131312.

213131302200 is a `hidden beast` number, since 2 + 1 + 313 + 130 + 220 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (213131302171) and next prime (213131302229).

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 59201340 + ... + 59204939.

It is an arithmetic number, because the mean of its divisors is an integer number (9941193925).

Almost surely, 2^213131302200 is an apocalyptic number.

213131302200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213131302200 is an abundant number, since it is smaller than the sum of its proper divisors (502634660400).

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

213131302200 is a wasteful number, since it uses less digits than its factorization.

213131302200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118406301 (or 118406289 counting only the distinct ones).

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

Adding to 213131302200 its reverse (2203131312), we get a palindrome (215334433512).

The spelling of 213131302200 in words is "two hundred thirteen billion, one hundred thirty-one million, three hundred two thousand, two hundred".