1322311123231 has 4 divisors (see below), whose sum is σ = 1511212712272. Its totient is φ = 1133409534192.

The previous prime is 1322311123193. The next prime is 1322311123261. The reversal of 1322311123231 is 1323211132231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1322311123231 - 2⁹ = 1322311122719 is a prime.

It is a super-2 number, since 2×1322311123231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322311123196 and 1322311123205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322311123261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94450794510 + ... + 94450794523.

It is an arithmetic number, because the mean of its divisors is an integer number (377803178068).

Almost surely, 2^{1322311123231} is an apocalyptic number.

1322311123231 is a deficient number, since it is larger than the sum of its proper divisors (188901589041).

1322311123231 is an equidigital number, since it uses as much as digits as its factorization.

1322311123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188901589040.

The product of its digits is 1296, while the sum is 25.

Adding to 1322311123231 its reverse (1323211132231), we get a palindrome (2645522255462).

The spelling of 1322311123231 in words is "one trillion, three hundred twenty-two billion, three hundred eleven million, one hundred twenty-three thousand, two hundred thirty-one".