103112211 has 4 divisors (see below), whose sum is σ = 137482952. Its totient is φ = 68741472.

The previous prime is 103112209. The next prime is 103112239. The reversal of 103112211 is 112211301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 103112211 - 2¹ = 103112209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17185366 + ... + 17185371.

It is an arithmetic number, because the mean of its divisors is an integer number (34370738).

Almost surely, 2^103112211 is an apocalyptic number.

103112211 is a deficient number, since it is larger than the sum of its proper divisors (34370741).

103112211 is an equidigital number, since it uses as much as digits as its factorization.

103112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34370740.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 103112211 is about 10154.4182994399. The cubic root of 103112211 is about 468.9249777329.

Adding to 103112211 its reverse (112211301), we get a palindrome (215323512).

The spelling of 103112211 in words is "one hundred three million, one hundred twelve thousand, two hundred eleven".