2003221123231 has 4 divisors (see below), whose sum is σ = 2003960049264. Its totient is φ = 2002482197200.

The previous prime is 2003221123193. The next prime is 2003221123247. The reversal of 2003221123231 is 1323211223002.

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 2003221123231 - 2¹⁷ = 2003220992159 is a prime.

It is a super-3 number, since 3×2003221123231³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003221123261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369458950 + ... + 369464371.

It is an arithmetic number, because the mean of its divisors is an integer number (500990012316).

Almost surely, 2^{2003221123231} is an apocalyptic number.

2003221123231 is a deficient number, since it is larger than the sum of its proper divisors (738926033).

2003221123231 is an equidigital number, since it uses as much as digits as its factorization.

2003221123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738926032.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2003221123231 its reverse (1323211223002), we get a palindrome (3326432346233).

The spelling of 2003221123231 in words is "two trillion, three billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred thirty-one".