131335223 has 2 divisors, whose sum is σ = 131335224. Its totient is φ = 131335222.

The previous prime is 131335213. The next prime is 131335231. The reversal of 131335223 is 322533131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131335223 - 2¹⁰ = 131334199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131335213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65667611 + 65667612.

It is an arithmetic number, because the mean of its divisors is an integer number (65667612).

Almost surely, 2^131335223 is an apocalyptic number.

131335223 is a deficient number, since it is larger than the sum of its proper divisors (1).

131335223 is an equidigital number, since it uses as much as digits as its factorization.

131335223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 23.

The square root of 131335223 is about 11460.1580704631. The cubic root of 131335223 is about 508.3081487000.

Adding to 131335223 its reverse (322533131), we get a palindrome (453868354).

The spelling of 131335223 in words is "one hundred thirty-one million, three hundred thirty-five thousand, two hundred twenty-three".