2003013201321 has 20 divisors (see below), whose sum is σ = 3264169662864. Its totient is φ = 1213947394200.

The previous prime is 2003013201307. The next prime is 2003013201331. The reversal of 2003013201321 is 1231023103002.

2003013201321 is a `hidden beast` number, since 20 + 0 + 3 + 0 + 1 + 320 + 1 + 321 = 666.

It is not a de Polignac number, because 2003013201321 - 2⁵ = 2003013201289 is a prime.

It is a super-2 number, since 2×2003013201321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2003013201294 and 2003013201303.

It is not an unprimeable number, because it can be changed into a prime (2003013201331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1124024475 + ... + 1124026256.

Almost surely, 2^{2003013201321} is an apocalyptic number.

It is an amenable number.

2003013201321 is a deficient number, since it is larger than the sum of its proper divisors (1261156461543).

2003013201321 is a wasteful number, since it uses less digits than its factorization.

2003013201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248050754 (or 2248050745 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2003013201321 its reverse (1231023103002), we get a palindrome (3234036304323).

The spelling of 2003013201321 in words is "two trillion, three billion, thirteen million, two hundred one thousand, three hundred twenty-one".