2001230441 has 4 divisors (see below), whose sum is σ = 2287120512. Its totient is φ = 1715340372.

The previous prime is 2001230419. The next prime is 2001230453. The reversal of 2001230441 is 1440321002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001230441 is a prime.

It is a super-3 number, since 3×2001230441³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001230471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142945025 + ... + 142945038.

It is an arithmetic number, because the mean of its divisors is an integer number (571780128).

Almost surely, 2^2001230441 is an apocalyptic number.

It is an amenable number.

2001230441 is a deficient number, since it is larger than the sum of its proper divisors (285890071).

2001230441 is an equidigital number, since it uses as much as digits as its factorization.

2001230441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285890070.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2001230441 is about 44735.1141833795. The cubic root of 2001230441 is about 1260.1793733462.

Adding to 2001230441 its reverse (1440321002), we get a palindrome (3441551443).

The spelling of 2001230441 in words is "two billion, one million, two hundred thirty thousand, four hundred forty-one".