12011730 has 16 divisors (see below), whose sum is σ = 28828224. Its totient is φ = 3203120.

The previous prime is 12011723. The next prime is 12011731. The reversal of 12011730 is 3711021.

12011730 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12011731) 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, 200166 + ... + 200225.

It is an arithmetic number, because the mean of its divisors is an integer number (1801764).

Almost surely, 2^12011730 is an apocalyptic number.

12011730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011730 is an abundant number, since it is smaller than the sum of its proper divisors (16816494).

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

12011730 is a wasteful number, since it uses less digits than its factorization.

12011730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400401.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 12011730 is about 3465.7942812579. The cubic root of 12011730 is about 229.0174214291.

Adding to 12011730 its reverse (3711021), we get a palindrome (15722751).

The spelling of 12011730 in words is "twelve million, eleven thousand, seven hundred thirty".