68505320103 has 8 divisors (see below), whose sum is σ = 99644102016. Its totient is φ = 41518375800.

The previous prime is 68505319963. The next prime is 68505320111. The reversal of 68505320103 is 30102350586.

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

It is not a de Polignac number, because 68505320103 - 2²⁴ = 68488542887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2075918791 = 68505320103 / (6 + 8 + 5 + 0 + 5 + 3 + 2 + 0 + 1 + 0 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68505320153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037959363 + ... + 1037959428.

It is an arithmetic number, because the mean of its divisors is an integer number (12455512752).

Almost surely, 2^68505320103 is an apocalyptic number.

68505320103 is a deficient number, since it is larger than the sum of its proper divisors (31138781913).

68505320103 is a wasteful number, since it uses less digits than its factorization.

68505320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075918805.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 68505320103 its reverse (30102350586), we get a palindrome (98607670689).

The spelling of 68505320103 in words is "sixty-eight billion, five hundred five million, three hundred twenty thousand, one hundred three".