12011340 has 48 divisors (see below), whose sum is σ = 36691200. Its totient is φ = 2911680.

The previous prime is 12011323. The next prime is 12011357. The reversal of 12011340 is 4311021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12011323) and next prime (12011357).

It is a Harshad number since it is a multiple of its sum of digits (12).

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 15 ways as a sum of consecutive naturals, for example, 8440 + ... + 9759.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^12011340 is an apocalyptic number.

12011340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011340 is an abundant number, since it is smaller than the sum of its proper divisors (24679860).

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

12011340 is a wasteful number, since it uses less digits than its factorization.

12011340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18222 (or 18220 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12011340 is about 3465.7380166423. The cubic root of 12011340 is about 229.0149428030.

Adding to 12011340 its reverse (4311021), we get a palindrome (16322361).

The spelling of 12011340 in words is "twelve million, eleven thousand, three hundred forty".