503325010021 has 2 divisors, whose sum is σ = 503325010022. Its totient is φ = 503325010020.

The previous prime is 503325010003. The next prime is 503325010033. The reversal of 503325010021 is 120010523305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402953265796 + 100371744225 = 634786^2 + 316815^2 .

It is a cyclic number.

It is not a de Polignac number, because 503325010021 - 2⁵ = 503325009989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503325009974 and 503325010001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503325010051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251662505010 + 251662505011.

It is an arithmetic number, because the mean of its divisors is an integer number (251662505011).

Almost surely, 2^503325010021 is an apocalyptic number.

It is an amenable number.

503325010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

503325010021 is an equidigital number, since it uses as much as digits as its factorization.

503325010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 503325010021 its reverse (120010523305), we get a palindrome (623335533326).

The spelling of 503325010021 in words is "five hundred three billion, three hundred twenty-five million, ten thousand, twenty-one".