2421004003 has 4 divisors (see below), whose sum is σ = 2641095288. Its totient is φ = 2200912720.

The previous prime is 2421003973. The next prime is 2421004021. The reversal of 2421004003 is 3004001242.

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

It is a cyclic number.

It is not a de Polignac number, because 2421004003 - 2⁵ = 2421003971 is a prime.

It is a super-3 number, since 3×2421004003³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421034003) 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, 110045626 + ... + 110045647.

It is an arithmetic number, because the mean of its divisors is an integer number (660273822).

Almost surely, 2^2421004003 is an apocalyptic number.

2421004003 is a deficient number, since it is larger than the sum of its proper divisors (220091285).

2421004003 is a wasteful number, since it uses less digits than its factorization.

2421004003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220091284.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2421004003 is about 49203.6990784230. The cubic root of 2421004003 is about 1342.7603311552.

Adding to 2421004003 its reverse (3004001242), we get a palindrome (5425005245).

The spelling of 2421004003 in words is "two billion, four hundred twenty-one million, four thousand, three".