2031321013321 has 8 divisors (see below), whose sum is σ = 2128736488320. Its totient is φ = 1934663635872.

The previous prime is 2031321013313. The next prime is 2031321013333. The reversal of 2031321013321 is 1233101231302.

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 2031321013321 - 2³ = 2031321013313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031321013292 and 2031321013301.

It is not an unprimeable number, because it can be changed into a prime (2031321013391) 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, 189518901 + ... + 189529618.

It is an arithmetic number, because the mean of its divisors is an integer number (266092061040).

Almost surely, 2^{2031321013321} is an apocalyptic number.

It is an amenable number.

2031321013321 is a deficient number, since it is larger than the sum of its proper divisors (97415474999).

2031321013321 is a wasteful number, since it uses less digits than its factorization.

2031321013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379048775.

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

Adding to 2031321013321 its reverse (1233101231302), we get a palindrome (3264422244623).

The spelling of 2031321013321 in words is "two trillion, thirty-one billion, three hundred twenty-one million, thirteen thousand, three hundred twenty-one".