2003312131 has 4 divisors (see below), whose sum is σ = 2003959600. Its totient is φ = 2002664664.

The previous prime is 2003312123. The next prime is 2003312149. The reversal of 2003312131 is 1312133002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312133002 = 2 ⋅656066501.

It is a cyclic number.

It is not a de Polignac number, because 2003312131 - 2³ = 2003312123 is a prime.

It is a super-2 number, since 2×2003312131² = 8026518988423522322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003312231) 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, 319071 + ... + 325288.

It is an arithmetic number, because the mean of its divisors is an integer number (500989900).

Almost surely, 2^2003312131 is an apocalyptic number.

2003312131 is a deficient number, since it is larger than the sum of its proper divisors (647469).

2003312131 is an equidigital number, since it uses as much as digits as its factorization.

2003312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647468.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2003312131 is about 44758.3749816724. The cubic root of 2003312131 is about 1260.6161702422.

Adding to 2003312131 its reverse (1312133002), we get a palindrome (3315445133).

The spelling of 2003312131 in words is "two billion, three million, three hundred twelve thousand, one hundred thirty-one".