100106100505 has 4 divisors (see below), whose sum is σ = 120127320612. Its totient is φ = 80084880400.

The previous prime is 100106100481. The next prime is 100106100509. The reversal of 100106100505 is 505001601001.

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 32933901529 + 67172198976 = 181477^2 + 259176^2 .

It is not a de Polignac number, because 100106100505 - 2⁷ = 100106100377 is a prime.

It is a super-2 number, since 2×100106100505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100106100509) 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, 10010610046 + ... + 10010610055.

It is an arithmetic number, because the mean of its divisors is an integer number (30031830153).

Almost surely, 2^100106100505 is an apocalyptic number.

It is an amenable number.

100106100505 is a deficient number, since it is larger than the sum of its proper divisors (20021220107).

100106100505 is an equidigital number, since it uses as much as digits as its factorization.

100106100505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20021220106.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 100106100505 its reverse (505001601001), we get a palindrome (605107701506).

The spelling of 100106100505 in words is "one hundred billion, one hundred six million, one hundred thousand, five hundred five".