201517042103 has 8 divisors (see below), whose sum is σ = 217048155408. Its totient is φ = 185990186304.

The previous prime is 201517042093. The next prime is 201517042141. The reversal of 201517042103 is 301240715102.

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

It is not a de Polignac number, because 201517042103 - 2¹⁰ = 201517041079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201517042183) 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, 965726 + ... + 1155707.

It is an arithmetic number, because the mean of its divisors is an integer number (27131019426).

Almost surely, 2^201517042103 is an apocalyptic number.

201517042103 is a deficient number, since it is larger than the sum of its proper divisors (15531113305).

201517042103 is a wasteful number, since it uses less digits than its factorization.

201517042103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128753.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 201517042103 its reverse (301240715102), we get a palindrome (502757757205).

The spelling of 201517042103 in words is "two hundred one billion, five hundred seventeen million, forty-two thousand, one hundred three".