213136260203 has 4 divisors (see below), whose sum is σ = 213692752128. Its totient is φ = 212579768280.

The previous prime is 213136260199. The next prime is 213136260217. The reversal of 213136260203 is 302062631312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213136260203 - 2² = 213136260199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213136260283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278245388 + ... + 278246153.

It is an arithmetic number, because the mean of its divisors is an integer number (53423188032).

Almost surely, 2^213136260203 is an apocalyptic number.

213136260203 is a deficient number, since it is larger than the sum of its proper divisors (556491925).

213136260203 is an equidigital number, since it uses as much as digits as its factorization.

213136260203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556491924.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 213136260203 its reverse (302062631312), we get a palindrome (515198891515).

The spelling of 213136260203 in words is "two hundred thirteen billion, one hundred thirty-six million, two hundred sixty thousand, two hundred three".