1001231131322 has 16 divisors (see below), whose sum is σ = 1519987140672. Its totient is φ = 494586829440.

The previous prime is 1001231131297. The next prime is 1001231131349. The reversal of 1001231131322 is 2231311321001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001231131294 and 1001231131303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4408478 + ... + 4630025.

It is an arithmetic number, because the mean of its divisors is an integer number (94999196292).

Almost surely, 2^{1001231131322} is an apocalyptic number.

1001231131322 is a deficient number, since it is larger than the sum of its proper divisors (518756009350).

1001231131322 is an equidigital number, since it uses as much as digits as its factorization.

1001231131322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039173.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1001231131322 its reverse (2231311321001), we get a palindrome (3232542452323).

The spelling of 1001231131322 in words is "one trillion, one billion, two hundred thirty-one million, one hundred thirty-one thousand, three hundred twenty-two".