2031320320311 has 8 divisors (see below), whose sum is σ = 2708642628720. Its totient is φ = 1354105779392.

The previous prime is 2031320320303. The next prime is 2031320320339. The reversal of 2031320320311 is 1130230231302.

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 2031320320311 - 2³ = 2031320320303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031320324311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26897880 + ... + 26973293.

It is an arithmetic number, because the mean of its divisors is an integer number (338580328590).

Almost surely, 2^{2031320320311} is an apocalyptic number.

2031320320311 is a deficient number, since it is larger than the sum of its proper divisors (677322308409).

2031320320311 is a wasteful number, since it uses less digits than its factorization.

2031320320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53883745.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2031320320311 its reverse (1130230231302), we get a palindrome (3161550551613).

The spelling of 2031320320311 in words is "two trillion, thirty-one billion, three hundred twenty million, three hundred twenty thousand, three hundred eleven".