1313321211231 has 8 divisors (see below), whose sum is σ = 1751101309104. Its totient is φ = 875544293760.

The previous prime is 1313321211203. The next prime is 1313321211239. The reversal of 1313321211231 is 1321121233131.

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

It is not a de Polignac number, because 1313321211231 - 2¹¹ = 1313321209183 is a prime.

It is a super-2 number, since 2×1313321211231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313321211239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444535 + ... + 1680551.

It is an arithmetic number, because the mean of its divisors is an integer number (218887663638).

Almost surely, 2^{1313321211231} is an apocalyptic number.

1313321211231 is a deficient number, since it is larger than the sum of its proper divisors (437780097873).

1313321211231 is a wasteful number, since it uses less digits than its factorization.

1313321211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590201.

The product of its digits is 648, while the sum is 24.

Adding to 1313321211231 its reverse (1321121233131), we get a palindrome (2634442444362).

The spelling of 1313321211231 in words is "one trillion, three hundred thirteen billion, three hundred twenty-one million, two hundred eleven thousand, two hundred thirty-one".