103231909 has 12 divisors (see below), whose sum is σ = 116644320. Its totient is φ = 90602960.

The previous prime is 103231903. The next prime is 103231913. The reversal of 103231909 is 909132301.

It is a de Polignac number, because none of the positive numbers 2^k-103231909 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 (103231903) 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 11 ways as a sum of consecutive naturals, for example, 3672 + ... + 14830.

It is an arithmetic number, because the mean of its divisors is an integer number (9720360).

Almost surely, 2^103231909 is an apocalyptic number.

It is an amenable number.

103231909 is a deficient number, since it is larger than the sum of its proper divisors (13412411).

103231909 is a wasteful number, since it uses less digits than its factorization.

103231909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11228 (or 11199 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 103231909 is about 10160.3104775396. The cubic root of 103231909 is about 469.1063583736.

The spelling of 103231909 in words is "one hundred three million, two hundred thirty-one thousand, nine hundred nine".