4520021003 has 2 divisors, whose sum is σ = 4520021004. Its totient is φ = 4520021002.

The previous prime is 4520020991. The next prime is 4520021021. The reversal of 4520021003 is 3001200254.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4520021003 is a prime.

It is a super-2 number, since 2×4520021003² = 40861179735122252018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4520021903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260010501 + 2260010502.

It is an arithmetic number, because the mean of its divisors is an integer number (2260010502).

Almost surely, 2^4520021003 is an apocalyptic number.

4520021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520021003 is an equidigital number, since it uses as much as digits as its factorization.

4520021003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 4520021003 is about 67231.1014560969. The cubic root of 4520021003 is about 1653.4084428361.

Adding to 4520021003 its reverse (3001200254), we get a palindrome (7521221257).

The spelling of 4520021003 in words is "four billion, five hundred twenty million, twenty-one thousand, three".