103112209 has 2 divisors, whose sum is σ = 103112210. Its totient is φ = 103112208.

The previous prime is 103112203. The next prime is 103112239. The reversal of 103112209 is 902211301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62853184 + 40259025 = 7928^2 + 6345^2 .

It is a cyclic number.

It is not a de Polignac number, because 103112209 - 2¹³ = 103104017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103112203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51556104 + 51556105.

It is an arithmetic number, because the mean of its divisors is an integer number (51556105).

Almost surely, 2^103112209 is an apocalyptic number.

It is an amenable number.

103112209 is a deficient number, since it is larger than the sum of its proper divisors (1).

103112209 is an equidigital number, since it uses as much as digits as its factorization.

103112209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 103112209 is about 10154.4182009606. The cubic root of 103112209 is about 468.9249747011.

The spelling of 103112209 in words is "one hundred three million, one hundred twelve thousand, two hundred nine".