103210389 has 16 divisors (see below), whose sum is σ = 153217600. Its totient is φ = 68665968.

The previous prime is 103210319. The next prime is 103210399. The reversal of 103210389 is 983012301.

It is not a de Polignac number, because 103210389 - 2⁹ = 103209877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103210319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10467 + ... + 17775.

It is an arithmetic number, because the mean of its divisors is an integer number (9576100).

Almost surely, 2^103210389 is an apocalyptic number.

It is an amenable number.

103210389 is a deficient number, since it is larger than the sum of its proper divisors (50007211).

103210389 is an equidigital number, since it uses as much as digits as its factorization.

103210389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841 (or 7835 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 103210389 is about 10159.2513995865. The cubic root of 103210389 is about 469.0737590527.

The spelling of 103210389 in words is "one hundred three million, two hundred ten thousand, three hundred eighty-nine".