1313111223232 has 28 divisors (see below), whose sum is σ = 2634982680240. Its totient is φ = 649178579456.

The previous prime is 1313111223223. The next prime is 1313111223251. The reversal of 1313111223232 is 2323221113131.

It is a super-2 number, since 2×1313111223232² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313111223197 and 1313111223206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115260388 + ... + 115271779.

Almost surely, 2^{1313111223232} is an apocalyptic number.

It is an amenable number.

1313111223232 is an abundant number, since it is smaller than the sum of its proper divisors (1321871457008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313111223232 is an equidigital number, since it uses as much as digits as its factorization.

1313111223232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230532268 (or 230532258 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 1313111223232 its reverse (2323221113131), we get a palindrome (3636332336363).

The spelling of 1313111223232 in words is "one trillion, three hundred thirteen billion, one hundred eleven million, two hundred twenty-three thousand, two hundred thirty-two".