213213130 has 32 divisors (see below), whose sum is σ = 414089424. Its totient is φ = 78575616.

The previous prime is 213213127. The next prime is 213213157. The reversal of 213213130 is 31312312.

It can be written as a sum of positive squares in 8 ways, for example, as 88868329 + 124344801 = 9427^2 + 11151^2 .

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 15 ways as a sum of consecutive naturals, for example, 86272 + ... + 88708.

Almost surely, 2^213213130 is an apocalyptic number.

213213130 is a deficient number, since it is larger than the sum of its proper divisors (200876294).

213213130 is a wasteful number, since it uses less digits than its factorization.

213213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213213130 is about 14601.8194071835. The cubic root of 213213130 is about 597.4083868339.

Adding to 213213130 its reverse (31312312), we get a palindrome (244525442).

The spelling of 213213130 in words is "two hundred thirteen million, two hundred thirteen thousand, one hundred thirty".