2003111310323 has 16 divisors (see below), whose sum is σ = 2155139433216. Its totient is φ = 1857174839520.

The previous prime is 2003111310301. The next prime is 2003111310329. The reversal of 2003111310323 is 3230131113002.

It is a cyclic number.

It is not a de Polignac number, because 2003111310323 - 2⁶ = 2003111310259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003111310295 and 2003111310304.

It is not an unprimeable number, because it can be changed into a prime (2003111310329) 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, 7600940 + ... + 7860057.

It is an arithmetic number, because the mean of its divisors is an integer number (134696214576).

Almost surely, 2^{2003111310323} is an apocalyptic number.

2003111310323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2003111310323 is a deficient number, since it is larger than the sum of its proper divisors (152028122893).

2003111310323 is a wasteful number, since it uses less digits than its factorization.

2003111310323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15461194.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2003111310323 its reverse (3230131113002), we get a palindrome (5233242423325).

The spelling of 2003111310323 in words is "two trillion, three billion, one hundred eleven million, three hundred ten thousand, three hundred twenty-three".