503105113 has 8 divisors (see below), whose sum is σ = 576581760. Its totient is φ = 430029600.

The previous prime is 503105111. The next prime is 503105149. The reversal of 503105113 is 311501305.

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

It is not a de Polignac number, because 503105113 - 2¹ = 503105111 is a prime.

It is a super-2 number, since 2×503105113² = 506229509453485538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503105111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97588 + ... + 102613.

It is an arithmetic number, because the mean of its divisors is an integer number (72072720).

Almost surely, 2^503105113 is an apocalyptic number.

It is an amenable number.

503105113 is a deficient number, since it is larger than the sum of its proper divisors (73476647).

503105113 is a wasteful number, since it uses less digits than its factorization.

503105113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200567.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 503105113 is about 22430.0047481047. The cubic root of 503105113 is about 795.3401563762.

Adding to 503105113 its reverse (311501305), we get a palindrome (814606418).

The spelling of 503105113 in words is "five hundred three million, one hundred five thousand, one hundred thirteen".