103240055 has 4 divisors (see below), whose sum is σ = 123888072. Its totient is φ = 82592040.

The previous prime is 103240051. The next prime is 103240061. The reversal of 103240055 is 550042301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550042301 = 337 ⋅1632173.

It is not a de Polignac number, because 103240055 - 2² = 103240051 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 (103240051) 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, 10324001 + ... + 10324010.

It is an arithmetic number, because the mean of its divisors is an integer number (30972018).

Almost surely, 2^103240055 is an apocalyptic number.

103240055 is a deficient number, since it is larger than the sum of its proper divisors (20648017).

103240055 is an equidigital number, since it uses as much as digits as its factorization.

103240055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20648016.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 103240055 is about 10160.7113432082. The cubic root of 103240055 is about 469.1186970647.

Adding to 103240055 its reverse (550042301), we get a palindrome (653282356).

The spelling of 103240055 in words is "one hundred three million, two hundred forty thousand, fifty-five".