103320909 has 12 divisors (see below), whose sum is σ = 153275356. Its totient is φ = 67018752.

The previous prime is 103320869. The next prime is 103320929. The reversal of 103320909 is 909023301.

It can be written as a sum of positive squares in 2 ways, for example, as 85045284 + 18275625 = 9222^2 + 4275^2 .

It is not a de Polignac number, because 103320909 - 2⁸ = 103320653 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 (103320929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154804 + ... + 155469.

Almost surely, 2^103320909 is an apocalyptic number.

It is an amenable number.

103320909 is a deficient number, since it is larger than the sum of its proper divisors (49954447).

103320909 is a wasteful number, since it uses less digits than its factorization.

103320909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310316 (or 310313 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 103320909 is about 10164.6893213713. The cubic root of 103320909 is about 469.2411308932.

The spelling of 103320909 in words is "one hundred three million, three hundred twenty thousand, nine hundred nine".