1311223332031 has 8 divisors (see below), whose sum is σ = 1331993899440. Its totient is φ = 1290488060928.

The previous prime is 1311223331917. The next prime is 1311223332101. The reversal of 1311223332031 is 1302333221131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311223332031 - 2¹⁵ = 1311223299263 is a prime.

It is a super-2 number, since 2×1311223332031² (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 = 1311223331987 and 1311223332005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311223333031) by changing a digit.

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, 8749186 + ... + 8897791.

It is an arithmetic number, because the mean of its divisors is an integer number (166499237430).

Almost surely, 2^{1311223332031} is an apocalyptic number.

1311223332031 is a deficient number, since it is larger than the sum of its proper divisors (20770567409).

1311223332031 is a wasteful number, since it uses less digits than its factorization.

1311223332031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17648153.

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

Adding to 1311223332031 its reverse (1302333221131), we get a palindrome (2613556553162).

The spelling of 1311223332031 in words is "one trillion, three hundred eleven billion, two hundred twenty-three million, three hundred thirty-two thousand, thirty-one".