103511800017 has 10 divisors (see below), whose sum is σ = 154628738418. Its totient is φ = 69007866624.

The previous prime is 103511800003. The next prime is 103511800019. The reversal of 103511800017 is 710008115301.

It can be written as a sum of positive squares in only one way, i.e., 97818192081 + 5693607936 = 312759^2 + 75456^2 .

It is not a de Polignac number, because 103511800017 - 2¹¹ = 103511797969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (103511800019) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 638961648 + ... + 638961809.

Almost surely, 2^103511800017 is an apocalyptic number.

It is an amenable number.

103511800017 is a deficient number, since it is larger than the sum of its proper divisors (51116938401).

103511800017 is an equidigital number, since it uses as much as digits as its factorization.

103511800017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277923469 (or 1277923460 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

Adding to 103511800017 its reverse (710008115301), we get a palindrome (813519915318).

The spelling of 103511800017 in words is "one hundred three billion, five hundred eleven million, eight hundred thousand, seventeen".