2001230423 has 4 divisors (see below), whose sum is σ = 2106558360. Its totient is φ = 1895902488.

The previous prime is 2001230419. The next prime is 2001230453. The reversal of 2001230423 is 3240321002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3240321002 = 2 ⋅1620160501.

It is a cyclic number.

It is not a de Polignac number, because 2001230423 - 2² = 2001230419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001230453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52663940 + ... + 52663977.

It is an arithmetic number, because the mean of its divisors is an integer number (526639590).

Almost surely, 2^2001230423 is an apocalyptic number.

2001230423 is a deficient number, since it is larger than the sum of its proper divisors (105327937).

2001230423 is a wasteful number, since it uses less digits than its factorization.

2001230423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105327936.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2001230423 is about 44735.1139821952. The cubic root of 2001230423 is about 1260.1793695680.

Adding to 2001230423 its reverse (3240321002), we get a palindrome (5241551425).

The spelling of 2001230423 in words is "two billion, one million, two hundred thirty thousand, four hundred twenty-three".