100717121707 has 4 divisors (see below), whose sum is σ = 106641658296. Its totient is φ = 94792585120.

The previous prime is 100717121663. The next prime is 100717121711. The reversal of 100717121707 is 707121717001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100717121707 - 2³¹ = 98569638059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100717121737) 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, 2962268269 + ... + 2962268302.

It is an arithmetic number, because the mean of its divisors is an integer number (26660414574).

Almost surely, 2^100717121707 is an apocalyptic number.

100717121707 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

100717121707 is a deficient number, since it is larger than the sum of its proper divisors (5924536589).

100717121707 is an equidigital number, since it uses as much as digits as its factorization.

100717121707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924536588.

The product of its (nonzero) digits is 4802, while the sum is 34.

Adding to 100717121707 its reverse (707121717001), we get a palindrome (807838838708).

The spelling of 100717121707 in words is "one hundred billion, seven hundred seventeen million, one hundred twenty-one thousand, seven hundred seven".