2231111102331 has 16 divisors (see below), whose sum is σ = 3055259005184. Its totient is φ = 1447186453344.

The previous prime is 2231111102317. The next prime is 2231111102347. The reversal of 2231111102331 is 1332011111322.

It is not a de Polignac number, because 2231111102331 - 2⁶ = 2231111102267 is a prime.

It is a super-3 number, since 3×2231111102331³ (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 junction number, because it is equal to n+sod(n) for n = 2231111102298 and 2231111102307.

It is not an unprimeable number, because it can be changed into a prime (2231111100331) 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, 13056066 + ... + 13225848.

It is an arithmetic number, because the mean of its divisors is an integer number (190953687824).

Almost surely, 2^{2231111102331} is an apocalyptic number.

2231111102331 is a deficient number, since it is larger than the sum of its proper divisors (824147902853).

2231111102331 is a wasteful number, since it uses less digits than its factorization.

2231111102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288210.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2231111102331 its reverse (1332011111322), we get a palindrome (3563122213653).

The spelling of 2231111102331 in words is "two trillion, two hundred thirty-one billion, one hundred eleven million, one hundred two thousand, three hundred thirty-one".