501012803 has 2 divisors, whose sum is σ = 501012804. Its totient is φ = 501012802.

The previous prime is 501012791. The next prime is 501012821. The reversal of 501012803 is 308210105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501012803 - 2¹⁶ = 500947267 is a prime.

It is not a weakly prime, because it can be changed into another prime (501012833) 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, 250506401 + 250506402.

It is an arithmetic number, because the mean of its divisors is an integer number (250506402).

Almost surely, 2^501012803 is an apocalyptic number.

501012803 is a deficient number, since it is larger than the sum of its proper divisors (1).

501012803 is an equidigital number, since it uses as much as digits as its factorization.

501012803 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 20.

The square root of 501012803 is about 22383.3152817003. The cubic root of 501012803 is about 794.2360727270.

Adding to 501012803 its reverse (308210105), we get a palindrome (809222908).

The spelling of 501012803 in words is "five hundred one million, twelve thousand, eight hundred three".