660103 has 2 divisors, whose sum is σ = 660104. Its totient is φ = 660102.

The previous prime is 660097. The next prime is 660119. The reversal of 660103 is 301066.

It is a happy number.

It is an a-pointer prime, because the next prime (660119) can be obtained adding 660103 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660103 - 2⁵ = 660071 is a prime.

660103 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330051 + 330052.

It is an arithmetic number, because the mean of its divisors is an integer number (330052).

2⁶⁶⁰¹⁰³ is an apocalyptic number.

660103 is a deficient number, since it is larger than the sum of its proper divisors (1).

660103 is an equidigital number, since it uses as much as digits as its factorization.

660103 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 16.

The square root of 660103 is about 812.4672301084. The cubic root of 660103 is about 87.0704058607.

Adding to 660103 its reverse (301066), we get a palindrome (961169).

The spelling of 660103 in words is "six hundred sixty thousand, one hundred three".