1000120103 has 2 divisors, whose sum is σ = 1000120104. Its totient is φ = 1000120102.

The previous prime is 1000120091. The next prime is 1000120127. The reversal of 1000120103 is 3010210001.

It is a weak prime.

It is an emirp because it is prime and its reverse (3010210001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000120103 - 2¹⁴ = 1000103719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000120153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500060051 + 500060052.

It is an arithmetic number, because the mean of its divisors is an integer number (500060052).

Almost surely, 2^1000120103 is an apocalyptic number.

1000120103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000120103 is an equidigital number, since it uses as much as digits as its factorization.

1000120103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1000120103 is about 31624.6755398376. The cubic root of 1000120103 is about 1000.0400327307.

Adding to 1000120103 its reverse (3010210001), we get a palindrome (4010330104).

The spelling of 1000120103 in words is "one billion, one hundred twenty thousand, one hundred three".