503123141 has 8 divisors (see below), whose sum is σ = 509687640. Its totient is φ = 496579072.

The previous prime is 503123129. The next prime is 503123147. The reversal of 503123141 is 141321305.

It can be written as a sum of positive squares in 4 ways, for example, as 5387041 + 497736100 = 2321^2 + 22310^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503123141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503123147) 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 in 7 ways as a sum of consecutive naturals, for example, 48011 + ... + 57543.

It is an arithmetic number, because the mean of its divisors is an integer number (63710955).

Almost surely, 2^503123141 is an apocalyptic number.

It is an amenable number.

503123141 is a deficient number, since it is larger than the sum of its proper divisors (6564499).

503123141 is an equidigital number, since it uses as much as digits as its factorization.

503123141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 503123141 is about 22430.4066169118. The cubic root of 503123141 is about 795.3496561942.

Adding to 503123141 its reverse (141321305), we get a palindrome (644444446).

The spelling of 503123141 in words is "five hundred three million, one hundred twenty-three thousand, one hundred forty-one".