2001423041 has 2 divisors, whose sum is σ = 2001423042. Its totient is φ = 2001423040.

The previous prime is 2001423037. The next prime is 2001423049. The reversal of 2001423041 is 1403241002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2000683441 + 739600 = 44729^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001423041 - 2² = 2001423037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2001423049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000711520 + 1000711521.

It is an arithmetic number, because the mean of its divisors is an integer number (1000711521).

Almost surely, 2^2001423041 is an apocalyptic number.

It is an amenable number.

2001423041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001423041 is an equidigital number, since it uses as much as digits as its factorization.

2001423041 is an evil number, because the sum of its binary digits is even.

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

The square root of 2001423041 is about 44737.2668029686. The cubic root of 2001423041 is about 1260.2197989358.

Adding to 2001423041 its reverse (1403241002), we get a palindrome (3404664043).

It can be divided in two parts, 200 and 1423041, that added together give a palindrome (1423241).

The spelling of 2001423041 in words is "two billion, one million, four hundred twenty-three thousand, forty-one".