12131330 has 8 divisors (see below), whose sum is σ = 21836412. Its totient is φ = 4852528.

The previous prime is 12131321. The next prime is 12131347. The reversal of 12131330 is 3313121.

It can be written as a sum of positive squares in 2 ways, for example, as 12103441 + 27889 = 3479^2 + 167^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606557 + ... + 606576.

Almost surely, 2^12131330 is an apocalyptic number.

12131330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131330 is a deficient number, since it is larger than the sum of its proper divisors (9705082).

12131330 is a wasteful number, since it uses less digits than its factorization.

12131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213140.

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

The square root of 12131330 is about 3483.0058857257. The cubic root of 12131330 is about 229.7750162898.

Adding to 12131330 its reverse (3313121), we get a palindrome (15444451).

The spelling of 12131330 in words is "twelve million, one hundred thirty-one thousand, three hundred thirty".