1213312322231 has 8 divisors (see below), whose sum is σ = 1258312278720. Its totient is φ = 1168523139168.

The previous prime is 1213312322227. The next prime is 1213312322273. The reversal of 1213312322231 is 1322232133121.

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 1213312322231 - 2² = 1213312322227 is a prime.

It is a super-2 number, since 2×1213312322231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213312322231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213312322221) 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 7 ways as a sum of consecutive naturals, for example, 52681631 + ... + 52704656.

It is an arithmetic number, because the mean of its divisors is an integer number (157289034840).

Almost surely, 2^{1213312322231} is an apocalyptic number.

1213312322231 is a deficient number, since it is larger than the sum of its proper divisors (44999956489).

1213312322231 is a wasteful number, since it uses less digits than its factorization.

1213312322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105386713.

The product of its digits is 2592, while the sum is 26.

Adding to 1213312322231 its reverse (1322232133121), we get a palindrome (2535544455352).

The spelling of 1213312322231 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, three hundred twenty-two thousand, two hundred thirty-one".