2003131322291 has 8 divisors (see below), whose sum is σ = 2187293781168. Its totient is φ = 1819312132000.

The previous prime is 2003131322287. The next prime is 2003131322323. The reversal of 2003131322291 is 1922231313002.

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

It is not a de Polignac number, because 2003131322291 - 2² = 2003131322287 is a prime.

It is a super-2 number, since 2×2003131322291² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003131322221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85804940 + ... + 85828281.

It is an arithmetic number, because the mean of its divisors is an integer number (273411722646).

Almost surely, 2^{2003131322291} is an apocalyptic number.

2003131322291 is a deficient number, since it is larger than the sum of its proper divisors (184162458877).

2003131322291 is a wasteful number, since it uses less digits than its factorization.

2003131322291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171634293.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 2003131322291 its reverse (1922231313002), we get a palindrome (3925362635293).

The spelling of 2003131322291 in words is "two trillion, three billion, one hundred thirty-one million, three hundred twenty-two thousand, two hundred ninety-one".