103243111 has 4 divisors (see below), whose sum is σ = 103308424. Its totient is φ = 103177800.

The previous prime is 103243087. The next prime is 103243117. The reversal of 103243111 is 111342301.

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 103243111 - 2¹³ = 103234919 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 (103243117) 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, 30225 + ... + 33466.

It is an arithmetic number, because the mean of its divisors is an integer number (25827106).

Almost surely, 2^103243111 is an apocalyptic number.

103243111 is a deficient number, since it is larger than the sum of its proper divisors (65313).

103243111 is an equidigital number, since it uses as much as digits as its factorization.

103243111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65312.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 103243111 is about 10160.8617252672. The cubic root of 103243111 is about 469.1233257997.

Adding to 103243111 its reverse (111342301), we get a palindrome (214585412).

The spelling of 103243111 in words is "one hundred three million, two hundred forty-three thousand, one hundred eleven".