1003120323103 has 4 divisors (see below), whose sum is σ = 1003122866200. Its totient is φ = 1003117780008.

The previous prime is 1003120323083. The next prime is 1003120323109. The reversal of 1003120323103 is 3013230213001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1003120323103 - 2⁹ = 1003120322591 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 (1003120323109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539325 + ... + 1515622.

It is an arithmetic number, because the mean of its divisors is an integer number (250780716550).

Almost surely, 2^{1003120323103} is an apocalyptic number.

1003120323103 is a deficient number, since it is larger than the sum of its proper divisors (2543097).

1003120323103 is an equidigital number, since it uses as much as digits as its factorization.

1003120323103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543096.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1003120323103 its reverse (3013230213001), we get a palindrome (4016350536104).

The spelling of 1003120323103 in words is "one trillion, three billion, one hundred twenty million, three hundred twenty-three thousand, one hundred three".