2103313212321 has 16 divisors (see below), whose sum is σ = 2904425330688. Its totient is φ = 1353045352400.

The previous prime is 2103313212317. The next prime is 2103313212323. The reversal of 2103313212321 is 1232123133012.

It is a cyclic number.

It is not a de Polignac number, because 2103313212321 - 2² = 2103313212317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103313212291 and 2103313212300.

It is not an unprimeable number, because it can be changed into a prime (2103313212323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105040095 + ... + 105060116.

It is an arithmetic number, because the mean of its divisors is an integer number (181526583168).

Almost surely, 2^{2103313212321} is an apocalyptic number.

It is an amenable number.

2103313212321 is a deficient number, since it is larger than the sum of its proper divisors (801112118367).

2103313212321 is a wasteful number, since it uses less digits than its factorization.

2103313212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210100332.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2103313212321 its reverse (1232123133012), we get a palindrome (3335436345333).

The spelling of 2103313212321 in words is "two trillion, one hundred three billion, three hundred thirteen million, two hundred twelve thousand, three hundred twenty-one".