2231031320331 has 32 divisors (see below), whose sum is σ = 3295685836800. Its totient is φ = 1331176622880.

The previous prime is 2231031320131. The next prime is 2231031320333. The reversal of 2231031320331 is 1330231301322.

2231031320331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2231031320331 - 2²⁶ = 2230964211467 is a prime.

It is a super-3 number, since 3×2231031320331³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2231031320333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328491 + ... + 2137748.

It is an arithmetic number, because the mean of its divisors is an integer number (102990182400).

Almost surely, 2^{2231031320331} is an apocalyptic number.

2231031320331 is a deficient number, since it is larger than the sum of its proper divisors (1064654516469).

2231031320331 is a wasteful number, since it uses less digits than its factorization.

2231031320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466679.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 2231031320331 its reverse (1330231301322), we get a palindrome (3561262621653).

The spelling of 2231031320331 in words is "two trillion, two hundred thirty-one billion, thirty-one million, three hundred twenty thousand, three hundred thirty-one".