10505110503 has 4 divisors (see below), whose sum is σ = 14006814008. Its totient is φ = 7003407000.

The previous prime is 10505110501. The next prime is 10505110519. The reversal of 10505110503 is 30501150501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30501150501 = 3 ⋅10167050167.

It is not a de Polignac number, because 10505110503 - 2¹ = 10505110501 is a prime.

It is a super-2 number, since 2×10505110503² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10505110503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505110501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750851748 + ... + 1750851753.

It is an arithmetic number, because the mean of its divisors is an integer number (3501703502).

Almost surely, 2^10505110503 is an apocalyptic number.

10505110503 is a deficient number, since it is larger than the sum of its proper divisors (3501703505).

10505110503 is an equidigital number, since it uses as much as digits as its factorization.

10505110503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501703504.

The product of its (nonzero) digits is 375, while the sum is 21.

The spelling of 10505110503 in words is "ten billion, five hundred five million, one hundred ten thousand, five hundred three".