131423330 has 8 divisors (see below), whose sum is σ = 236562012. Its totient is φ = 52569328.

The previous prime is 131423317. The next prime is 131423333. The reversal of 131423330 is 33324131.

It can be written as a sum of positive squares in 2 ways, for example, as 109977169 + 21446161 = 10487^2 + 4631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131423333) 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, 6571157 + ... + 6571176.

Almost surely, 2^131423330 is an apocalyptic number.

131423330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131423330 is a deficient number, since it is larger than the sum of its proper divisors (105138682).

131423330 is a wasteful number, since it uses less digits than its factorization.

131423330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13142340.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 131423330 is about 11464.0014829029. The cubic root of 131423330 is about 508.4217904530.

Adding to 131423330 its reverse (33324131), we get a palindrome (164747461).

The spelling of 131423330 in words is "one hundred thirty-one million, four hundred twenty-three thousand, three hundred thirty".