213532242530 has 32 divisors (see below), whose sum is σ = 394791954480. Its totient is φ = 83094785280.

The previous prime is 213532242529. The next prime is 213532242559. The reversal of 213532242530 is 35242235312.

213532242530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 73020469729 + 140511772801 = 270223^2 + 374849^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3723716 + ... + 3780624.

Almost surely, 2^213532242530 is an apocalyptic number.

213532242530 is a deficient number, since it is larger than the sum of its proper divisors (181259711950).

213532242530 is a wasteful number, since it uses less digits than its factorization.

213532242530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67094.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 213532242530 its reverse (35242235312), we get a palindrome (248774477842).

The spelling of 213532242530 in words is "two hundred thirteen billion, five hundred thirty-two million, two hundred forty-two thousand, five hundred thirty".