131322424 has 16 divisors (see below), whose sum is σ = 246506400. Its totient is φ = 65587392.

The previous prime is 131322421. The next prime is 131322427. The reversal of 131322424 is 424223131.

It is an interprime number because it is at equal distance from previous prime (131322421) and next prime (131322427).

It is a junction number, because it is equal to n+sod(n) for n = 131322395 and 131322404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264 + ... + 16255.

It is an arithmetic number, because the mean of its divisors is an integer number (15406650).

Almost surely, 2^131322424 is an apocalyptic number.

It is an amenable number.

131322424 is a deficient number, since it is larger than the sum of its proper divisors (115183976).

131322424 is a wasteful number, since it uses less digits than its factorization.

131322424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18462 (or 18458 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 131322424 is about 11459.5996439666. The cubic root of 131322424 is about 508.2916361271.

Adding to 131322424 its reverse (424223131), we get a palindrome (555545555).

The spelling of 131322424 in words is "one hundred thirty-one million, three hundred twenty-two thousand, four hundred twenty-four".