10505103013 has 4 divisors (see below), whose sum is σ = 10506013420. Its totient is φ = 10504192608.

The previous prime is 10505103001. The next prime is 10505103019. The reversal of 10505103013 is 31030150501.

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 7447344804 + 3057758209 = 86298^2 + 55297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10505103013 is a prime.

It is a super-2 number, since 2×10505103013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505103019) 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, 437670 + ... + 461047.

It is an arithmetic number, because the mean of its divisors is an integer number (2626503355).

Almost surely, 2^10505103013 is an apocalyptic number.

It is an amenable number.

10505103013 is a deficient number, since it is larger than the sum of its proper divisors (910407).

10505103013 is an equidigital number, since it uses as much as digits as its factorization.

10505103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910406.

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

Adding to 10505103013 its reverse (31030150501), we get a palindrome (41535253514).

The spelling of 10505103013 in words is "ten billion, five hundred five million, one hundred three thousand, thirteen".