2003011311323 has 8 divisors (see below), whose sum is σ = 2188739035056. Its totient is φ = 1817889552000.

The previous prime is 2003011311299. The next prime is 2003011311347. The reversal of 2003011311323 is 3231131103002.

It is an interprime number because it is at equal distance from previous prime (2003011311299) and next prime (2003011311347).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2003011311323 - 2¹⁰ = 2003011310299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003011311295 and 2003011311304.

It is not an unprimeable number, because it can be changed into a prime (2003011311023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151484186 + ... + 151497407.

It is an arithmetic number, because the mean of its divisors is an integer number (273592379382).

Almost surely, 2^{2003011311323} is an apocalyptic number.

2003011311323 is a deficient number, since it is larger than the sum of its proper divisors (185727723733).

2003011311323 is a wasteful number, since it uses less digits than its factorization.

2003011311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302982205.

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

Adding to 2003011311323 its reverse (3231131103002), we get a palindrome (5234142414325).

The spelling of 2003011311323 in words is "two trillion, three billion, eleven million, three hundred eleven thousand, three hundred twenty-three".