213131300203 has 4 divisors (see below), whose sum is σ = 215328530200. Its totient is φ = 210934070208.

The previous prime is 213131300171. The next prime is 213131300227. The reversal of 213131300203 is 302003131312.

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 213131300203 - 2⁵ = 213131300171 is a prime.

It is a super-2 number, since 2×213131300203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213131300293) 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, 1098614853 + ... + 1098615046.

It is an arithmetic number, because the mean of its divisors is an integer number (53832132550).

Almost surely, 2^213131300203 is an apocalyptic number.

213131300203 is a deficient number, since it is larger than the sum of its proper divisors (2197229997).

213131300203 is an equidigital number, since it uses as much as digits as its factorization.

213131300203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197229996.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213131300203 its reverse (302003131312), we get a palindrome (515134431515).

The spelling of 213131300203 in words is "two hundred thirteen billion, one hundred thirty-one million, three hundred thousand, two hundred three".