100105500000511 has 4 divisors (see below), whose sum is σ = 100105900815024. Its totient is φ = 100105099186000.

The previous prime is 100105500000491. The next prime is 100105500000589. The reversal of 100105500000511 is 115000005501001.

It is a happy number.

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 100105500000511 - 2³¹ = 100103352516863 is a prime.

It is a super-2 number, since 2×100105500000511² (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 (100105500000211) 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, 200032390 + ... + 200532211.

It is an arithmetic number, because the mean of its divisors is an integer number (25026475203756).

Almost surely, 2^{100105500000511} is an apocalyptic number.

100105500000511 is a deficient number, since it is larger than the sum of its proper divisors (400814513).

100105500000511 is an equidigital number, since it uses as much as digits as its factorization.

100105500000511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400814512.

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 100105500000511 its reverse (115000005501001), we get a palindrome (215105505501512).

The spelling of 100105500000511 in words is "one hundred trillion, one hundred five billion, five hundred million, five hundred eleven", and thus it is an aban number.