1980103 has 2 divisors, whose sum is σ = 1980104. Its totient is φ = 1980102.

The previous prime is 1980101. The next prime is 1980113. The reversal of 1980103 is 3010891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1980103 - 2¹ = 1980101 is a prime.

Together with 1980101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980101) 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 as a sum of consecutive naturals, namely, 990051 + 990052.

It is an arithmetic number, because the mean of its divisors is an integer number (990052).

2^1980103 is an apocalyptic number.

1980103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980103 is an equidigital number, since it uses as much as digits as its factorization.

1980103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1980103 is about 1407.1613269274. The cubic root of 1980103 is about 125.5729009314.

Adding to 1980103 its reverse (3010891), we get a palindrome (4990994).

The spelling of 1980103 in words is "one million, nine hundred eighty thousand, one hundred three".