2231001112321 has 2 divisors, whose sum is σ = 2231001112322. Its totient is φ = 2231001112320.

The previous prime is 2231001112309. The next prime is 2231001112369. The reversal of 2231001112321 is 1232111001322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1521929332225 + 709071780096 = 1233665^2 + 842064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231001112321 - 2²¹ = 2230999015169 is a prime.

It is a super-3 number, since 3×2231001112321³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231001116321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115500556160 + 1115500556161.

It is an arithmetic number, because the mean of its divisors is an integer number (1115500556161).

Almost surely, 2^{2231001112321} is an apocalyptic number.

It is an amenable number.

2231001112321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231001112321 is an equidigital number, since it uses as much as digits as its factorization.

2231001112321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2231001112321 its reverse (1232111001322), we get a palindrome (3463112113643).

The spelling of 2231001112321 in words is "two trillion, two hundred thirty-one billion, one million, one hundred twelve thousand, three hundred twenty-one".