12032001 has 12 divisors (see below), whose sum is σ = 17422080. Its totient is φ = 8001720.

The previous prime is 12031991. The next prime is 12032011. The reversal of 12032001 is 10023021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12031991) and next prime (12032011).

It is not a de Polignac number, because 12032001 - 2⁹ = 12031489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2916 + ... + 5706.

It is an arithmetic number, because the mean of its divisors is an integer number (1451840).

Almost surely, 2^12032001 is an apocalyptic number.

It is an amenable number.

12032001 is a deficient number, since it is larger than the sum of its proper divisors (5390079).

12032001 is a wasteful number, since it uses less digits than its factorization.

12032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3273 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12032001 is about 3468.7174863341. The cubic root of 12032001 is about 229.1461789875.

Adding to 12032001 its reverse (10023021), we get a palindrome (22055022).

The spelling of 12032001 in words is "twelve million, thirty-two thousand, one".