1322331031231 has 4 divisors (see below), whose sum is σ = 1511235464272. Its totient is φ = 1133426598192.

The previous prime is 1322331031123. The next prime is 1322331031297. The reversal of 1322331031231 is 1321301332231.

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

It is not a de Polignac number, because 1322331031231 - 2¹⁵ = 1322330998463 is a prime.

It is a super-2 number, since 2×1322331031231² (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 = 1322331031196 and 1322331031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322331031331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94452216510 + ... + 94452216523.

It is an arithmetic number, because the mean of its divisors is an integer number (377808866068).

Almost surely, 2^{1322331031231} is an apocalyptic number.

1322331031231 is a deficient number, since it is larger than the sum of its proper divisors (188904433041).

1322331031231 is an equidigital number, since it uses as much as digits as its factorization.

1322331031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188904433040.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1322331031231 its reverse (1321301332231), we get a palindrome (2643632363462).

The spelling of 1322331031231 in words is "one trillion, three hundred twenty-two billion, three hundred thirty-one million, thirty-one thousand, two hundred thirty-one".