213113213210 has 16 divisors (see below), whose sum is σ = 396831501000. Its totient is φ = 82305792576.

The previous prime is 213113213179. The next prime is 213113213221. The reversal of 213113213210 is 12312311312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 196746360721 + 16366852489 = 443561^2 + 127933^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367436285 + ... + 367436864.

Almost surely, 2^213113213210 is an apocalyptic number.

213113213210 is a deficient number, since it is larger than the sum of its proper divisors (183718287790).

213113213210 is a wasteful number, since it uses less digits than its factorization.

213113213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734873185.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213113213210 its reverse (12312311312), we get a palindrome (225425524522).

The spelling of 213113213210 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred thirteen thousand, two hundred ten".