2031344143321 has 4 divisors (see below), whose sum is σ = 2064644867044. Its totient is φ = 1998043419600.

The previous prime is 2031344143313. The next prime is 2031344143327. The reversal of 2031344143321 is 1233414431302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161575057296 + 1869769086025 = 401964^2 + 1367395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031344143321 - 2³ = 2031344143313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031344143327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16650361770 + ... + 16650361891.

It is an arithmetic number, because the mean of its divisors is an integer number (516161216761).

Almost surely, 2^{2031344143321} is an apocalyptic number.

It is an amenable number.

2031344143321 is a deficient number, since it is larger than the sum of its proper divisors (33300723723).

2031344143321 is an equidigital number, since it uses as much as digits as its factorization.

2031344143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33300723722.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 2031344143321 its reverse (1233414431302), we get a palindrome (3264758574623).

The spelling of 2031344143321 in words is "two trillion, thirty-one billion, three hundred forty-four million, one hundred forty-three thousand, three hundred twenty-one".