2003131213321 has 8 divisors (see below), whose sum is σ = 2289306628800. Its totient is φ = 1716959251248.

The previous prime is 2003131213273. The next prime is 2003131213333. The reversal of 2003131213321 is 1233121313002.

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 2003131213321 - 2¹⁵ = 2003131180553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003131213292 and 2003131213301.

It is not an unprimeable number, because it can be changed into a prime (2003131213121) 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, 529395 + ... + 2070391.

It is an arithmetic number, because the mean of its divisors is an integer number (286163328600).

Almost surely, 2^{2003131213321} is an apocalyptic number.

It is an amenable number.

2003131213321 is a deficient number, since it is larger than the sum of its proper divisors (286175415479).

2003131213321 is a wasteful number, since it uses less digits than its factorization.

2003131213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726703.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2003131213321 its reverse (1233121313002), we get a palindrome (3236252526323).

The spelling of 2003131213321 in words is "two trillion, three billion, one hundred thirty-one million, two hundred thirteen thousand, three hundred twenty-one".