2001423002 has 4 divisors (see below), whose sum is σ = 3002134506. Its totient is φ = 1000711500.

The previous prime is 2001423001. The next prime is 2001423029. The reversal of 2001423002 is 2003241002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1998179401 + 3243601 = 44701^2 + 1801^2 .

It is not an unprimeable number, because it can be changed into a prime (2001423001) 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 as a sum of consecutive naturals, namely, 500355749 + ... + 500355752.

Almost surely, 2^2001423002 is an apocalyptic number.

2001423002 is a deficient number, since it is larger than the sum of its proper divisors (1000711504).

2001423002 is a wasteful number, since it uses less digits than its factorization.

2001423002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000711503.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2001423002 is about 44737.2663670904. The cubic root of 2001423002 is about 1260.2197907502.

Adding to 2001423002 its reverse (2003241002), we get a palindrome (4004664004).

The spelling of 2001423002 in words is "two billion, one million, four hundred twenty-three thousand, two".