100556105511101 has 4 divisors (see below), whose sum is σ = 100615360731132. Its totient is φ = 100496850291072.

The previous prime is 100556105511067. The next prime is 100556105511107. The reversal of 100556105511101 is 101115501655001.

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 54285228358201 + 46270877152900 = 7367851^2 + 6802270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100556105511101 is a prime.

It is a super-2 number, since 2×100556105511101² (a number of 29 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 (100556105511107) 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, 29627607470 + ... + 29627610863.

It is an arithmetic number, because the mean of its divisors is an integer number (25153840182783).

Almost surely, 2^{100556105511101} is an apocalyptic number.

It is an amenable number.

100556105511101 is a deficient number, since it is larger than the sum of its proper divisors (59255220031).

100556105511101 is an equidigital number, since it uses as much as digits as its factorization.

100556105511101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59255220030.

The product of its (nonzero) digits is 3750, while the sum is 32.

The spelling of 100556105511101 in words is "one hundred trillion, five hundred fifty-six billion, one hundred five million, five hundred eleven thousand, one hundred one".