12340100 has 18 divisors (see below), whose sum is σ = 26778234. Its totient is φ = 4936000.

The previous prime is 12340091. The next prime is 12340103. The reversal of 12340100 is 104321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3147076 + 9193024 = 1774^2 + 3032^2 .

It is not an unprimeable number, because it can be changed into a prime (12340103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61601 + ... + 61800.

Almost surely, 2^12340100 is an apocalyptic number.

12340100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340100 is an abundant number, since it is smaller than the sum of its proper divisors (14438134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12340100 is a wasteful number, since it uses less digits than its factorization.

12340100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123415 (or 123408 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12340100 is about 3512.8478475448. The cubic root of 12340100 is about 231.0856050980.

Adding to 12340100 its reverse (104321), we get a palindrome (12444421).

The spelling of 12340100 in words is "twelve million, three hundred forty thousand, one hundred".