131030213 has 4 divisors (see below), whose sum is σ = 137926560. Its totient is φ = 124133868.

The previous prime is 131030201. The next prime is 131030231. The reversal of 131030213 is 312030131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131030213 - 2⁴ = 131030197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3448145 + ... + 3448182.

It is an arithmetic number, because the mean of its divisors is an integer number (34481640).

Almost surely, 2^131030213 is an apocalyptic number.

It is an amenable number.

131030213 is a deficient number, since it is larger than the sum of its proper divisors (6896347).

131030213 is an equidigital number, since it uses as much as digits as its factorization.

131030213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896346.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131030213 is about 11446.8429272005. The cubic root of 131030213 is about 507.9143491801.

Adding to 131030213 its reverse (312030131), we get a palindrome (443060344).

The spelling of 131030213 in words is "one hundred thirty-one million, thirty thousand, two hundred thirteen".