131030423 has 4 divisors (see below), whose sum is σ = 131401968. Its totient is φ = 130658880.

The previous prime is 131030411. The next prime is 131030437. The reversal of 131030423 is 324030131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324030131 = 197 ⋅1644823.

It is a cyclic number.

It is not a de Polignac number, because 131030423 - 2²² = 126836119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 185243 + ... + 185948.

It is an arithmetic number, because the mean of its divisors is an integer number (32850492).

Almost surely, 2^131030423 is an apocalyptic number.

131030423 is a deficient number, since it is larger than the sum of its proper divisors (371545).

131030423 is an equidigital number, since it uses as much as digits as its factorization.

131030423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371544.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131030423 is about 11446.8521000317. The cubic root of 131030423 is about 507.9146205220.

Adding to 131030423 its reverse (324030131), we get a palindrome (455060554).

The spelling of 131030423 in words is "one hundred thirty-one million, thirty thousand, four hundred twenty-three".