213135202450 has 36 divisors (see below), whose sum is σ = 421122738942. Its totient is φ = 80239129600.

The previous prime is 213135202447. The next prime is 213135202591. The reversal of 213135202450 is 54202531312.

213135202450 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 9 ways, for example, as 82497051729 + 130638150721 = 287223^2 + 361439^2 .

It is a super-2 number, since 2×213135202450² (a number of 23 digits) contains 22 as substring.

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 17 ways as a sum of consecutive naturals, for example, 7360471 + ... + 7389370.

Almost surely, 2^213135202450 is an apocalyptic number.

213135202450 is a deficient number, since it is larger than the sum of its proper divisors (207987536492).

213135202450 is a wasteful number, since it uses less digits than its factorization.

213135202450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14749887 (or 14749865 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 213135202450 its reverse (54202531312), we get a palindrome (267337733762).

The spelling of 213135202450 in words is "two hundred thirteen billion, one hundred thirty-five million, two hundred two thousand, four hundred fifty".