12261030 has 16 divisors (see below), whose sum is σ = 29426544. Its totient is φ = 3269600.

The previous prime is 12261013. The next prime is 12261043. The reversal of 12261030 is 3016221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204321 + ... + 204380.

It is an arithmetic number, because the mean of its divisors is an integer number (1839159).

Almost surely, 2^12261030 is an apocalyptic number.

12261030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12261030 is an abundant number, since it is smaller than the sum of its proper divisors (17165514).

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

12261030 is a wasteful number, since it uses less digits than its factorization.

12261030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408711.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12261030 is about 3501.5753597488. The cubic root of 12261030 is about 230.5909817554.

Adding to 12261030 its reverse (3016221), we get a palindrome (15277251).

The spelling of 12261030 in words is "twelve million, two hundred sixty-one thousand, thirty".