103109878543 has 4 divisors (see below), whose sum is σ = 117839861200. Its totient is φ = 88379895888.

The previous prime is 103109878457. The next prime is 103109878559. The reversal of 103109878543 is 345878901301.

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 103109878543 - 2¹³ = 103109870351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103109878043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7364991318 + ... + 7364991331.

It is an arithmetic number, because the mean of its divisors is an integer number (29459965300).

Almost surely, 2^103109878543 is an apocalyptic number.

103109878543 is a deficient number, since it is larger than the sum of its proper divisors (14729982657).

103109878543 is an equidigital number, since it uses as much as digits as its factorization.

103109878543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14729982656.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 103109878543 in words is "one hundred three billion, one hundred nine million, eight hundred seventy-eight thousand, five hundred forty-three".