103556556111 has 4 divisors (see below), whose sum is σ = 138075408152. Its totient is φ = 69037704072.

The previous prime is 103556556109. The next prime is 103556556151. The reversal of 103556556111 is 111655655301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111655655301 = 3 ⋅37218551767.

It is not a de Polignac number, because 103556556111 - 2¹ = 103556556109 is a prime.

It is a super-3 number, since 3×103556556111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103556556111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103556556151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17259426016 + ... + 17259426021.

It is an arithmetic number, because the mean of its divisors is an integer number (34518852038).

Almost surely, 2^103556556111 is an apocalyptic number.

103556556111 is a deficient number, since it is larger than the sum of its proper divisors (34518852041).

103556556111 is an equidigital number, since it uses as much as digits as its factorization.

103556556111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34518852040.

The product of its (nonzero) digits is 67500, while the sum is 39.

The spelling of 103556556111 in words is "one hundred three billion, five hundred fifty-six million, five hundred fifty-six thousand, one hundred eleven".