12331730 has 16 divisors (see below), whose sum is σ = 22797720. Its totient is φ = 4799232.

The previous prime is 12331727. The next prime is 12331733. The reversal of 12331730 is 3713321.

It is a happy number.

12331730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12331727) and next prime (12331733).

It can be written as a sum of positive squares in 4 ways, for example, as 12117361 + 214369 = 3481^2 + 463^2 .

It is not an unprimeable number, because it can be changed into a prime (12331733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16295 + ... + 17034.

Almost surely, 2^12331730 is an apocalyptic number.

12331730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12331730 is a deficient number, since it is larger than the sum of its proper divisors (10465990).

12331730 is a wasteful number, since it uses less digits than its factorization.

12331730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33373.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 12331730 is about 3511.6563043669. The cubic root of 12331730 is about 231.0333466349.

The spelling of 12331730 in words is "twelve million, three hundred thirty-one thousand, seven hundred thirty".