503044103131121 has 4 divisors (see below), whose sum is σ = 503047251389412. Its totient is φ = 503040954872832.

The previous prime is 503044103131093. The next prime is 503044103131189. The reversal of 503044103131121 is 121131301440305.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24674417002225 + 478369686128896 = 4967335^2 + 21871664^2 .

It is a cyclic number.

It is not a de Polignac number, because 503044103131121 - 2⁶ = 503044103131057 is a prime.

It is a super-2 number, since 2×503044103131121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503044183131121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573889456 + ... + 1574209041.

It is an arithmetic number, because the mean of its divisors is an integer number (125761812847353).

Almost surely, 2^{503044103131121} is an apocalyptic number.

It is an amenable number.

503044103131121 is a deficient number, since it is larger than the sum of its proper divisors (3148258291).

503044103131121 is a wasteful number, since it uses less digits than its factorization.

503044103131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148258290.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 503044103131121 its reverse (121131301440305), we get a palindrome (624175404571426).

The spelling of 503044103131121 in words is "five hundred three trillion, forty-four billion, one hundred three million, one hundred thirty-one thousand, one hundred twenty-one".