100555511027 has 4 divisors (see below), whose sum is σ = 101445382920. Its totient is φ = 99665639136.

The previous prime is 100555511011. The next prime is 100555511101. The reversal of 100555511027 is 720115555001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720115555001 = 63997 ⋅11252333.

It is a cyclic number.

It is not a de Polignac number, because 100555511027 - 2⁴ = 100555511011 is a prime.

It is a super-2 number, since 2×100555511027² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100555510984 and 100555511002.

It is not an unprimeable number, because it can be changed into a prime (100555513027) 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, 444935777 + ... + 444936002.

It is an arithmetic number, because the mean of its divisors is an integer number (25361345730).

Almost surely, 2^100555511027 is an apocalyptic number.

100555511027 is a deficient number, since it is larger than the sum of its proper divisors (889871893).

100555511027 is an equidigital number, since it uses as much as digits as its factorization.

100555511027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889871892.

The product of its (nonzero) digits is 8750, while the sum is 32.

The spelling of 100555511027 in words is "one hundred billion, five hundred fifty-five million, five hundred eleven thousand, twenty-seven".