2231231230331 has 16 divisors (see below), whose sum is σ = 2351008800000. Its totient is φ = 2111688852768.

The previous prime is 2231231230313. The next prime is 2231231230337. The reversal of 2231231230331 is 1330321321322.

It is a cyclic number.

It is not a de Polignac number, because 2231231230331 - 2²⁶ = 2231164121467 is a prime.

It is a super-3 number, since 3×2231231230331³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231231230331.

It is not an unprimeable number, because it can be changed into a prime (2231231230337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181942106 + ... + 181954368.

It is an arithmetic number, because the mean of its divisors is an integer number (146938050000).

Almost surely, 2^{2231231230331} is an apocalyptic number.

2231231230331 is a deficient number, since it is larger than the sum of its proper divisors (119777569669).

2231231230331 is a wasteful number, since it uses less digits than its factorization.

2231231230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21058.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 2231231230331 its reverse (1330321321322), we get a palindrome (3561552551653).

Subtracting from 2231231230331 its reverse (1330321321322), we obtain a palindrome (900909909009).

The spelling of 2231231230331 in words is "two trillion, two hundred thirty-one billion, two hundred thirty-one million, two hundred thirty thousand, three hundred thirty-one".