213213434210 has 32 divisors (see below), whose sum is σ = 440542730880. Its totient is φ = 72779709312.

The previous prime is 213213434207. The next prime is 213213434251. The reversal of 213213434210 is 12434312312.

It is a self number, because there is not a number n which added to its sum of digits gives 213213434210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6693155 + ... + 6724934.

It is an arithmetic number, because the mean of its divisors is an integer number (13766960340).

Almost surely, 2^213213434210 is an apocalyptic number.

213213434210 is an abundant number, since it is smaller than the sum of its proper divisors (227329296670).

213213434210 is a wasteful number, since it uses less digits than its factorization.

213213434210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13418330.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 213213434210 its reverse (12434312312), we get a palindrome (225647746522).

The spelling of 213213434210 in words is "two hundred thirteen billion, two hundred thirteen million, four hundred thirty-four thousand, two hundred ten".