213235420330 has 16 divisors (see below), whose sum is σ = 383845426344. Its totient is φ = 85289352640.

The previous prime is 213235420291. The next prime is 213235420337. The reversal of 213235420330 is 33024532312.

It can be written as a sum of positive squares in 4 ways, for example, as 212868736129 + 366684201 = 461377^2 + 19149^2 .

It is not an unprimeable number, because it can be changed into a prime (213235420337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413137 + ... + 772756.

Almost surely, 2^213235420330 is an apocalyptic number.

213235420330 is a deficient number, since it is larger than the sum of its proper divisors (170610006014).

213235420330 is a wasteful number, since it uses less digits than its factorization.

213235420330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203881.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 213235420330 its reverse (33024532312), we get a palindrome (246259952642).

The spelling of 213235420330 in words is "two hundred thirteen billion, two hundred thirty-five million, four hundred twenty thousand, three hundred thirty".