213502420244 has 12 divisors (see below), whose sum is σ = 373745400084. Its totient is φ = 106718020224.

The previous prime is 213502420231. The next prime is 213502420247. The reversal of 213502420244 is 442024205312.

213502420244 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 2 ways, for example, as 179115168400 + 34387251844 = 423220^2 + 185438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213502420247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8282999 + ... + 8308734.

It is an arithmetic number, because the mean of its divisors is an integer number (31145450007).

Almost surely, 2^213502420244 is an apocalyptic number.

It is an amenable number.

213502420244 is a deficient number, since it is larger than the sum of its proper divisors (160242979840).

213502420244 is a wasteful number, since it uses less digits than its factorization.

213502420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16594954 (or 16594952 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 213502420244 its reverse (442024205312), we get a palindrome (655526625556).

The spelling of 213502420244 in words is "two hundred thirteen billion, five hundred two million, four hundred twenty thousand, two hundred forty-four".