1313321123011 has 6 divisors (see below), whose sum is σ = 1386081296412. Its totient is φ = 1244198958300.

The previous prime is 1313321122991. The next prime is 1313321123021. The reversal of 1313321123011 is 1103211233131.

It is not a de Polignac number, because 1313321123011 - 2⁵ = 1313321122979 is a prime.

It is a super-2 number, since 2×1313321123011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313321123021) 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 5 ways as a sum of consecutive naturals, for example, 1819003965 + ... + 1819004686.

It is an arithmetic number, because the mean of its divisors is an integer number (231013549402).

Almost surely, 2^{1313321123011} is an apocalyptic number.

1313321123011 is a deficient number, since it is larger than the sum of its proper divisors (72760173401).

1313321123011 is an equidigital number, since it uses as much as digits as its factorization.

1313321123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638008689 (or 3638008670 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1313321123011 its reverse (1103211233131), we get a palindrome (2416532356142).

The spelling of 1313321123011 in words is "one trillion, three hundred thirteen billion, three hundred twenty-one million, one hundred twenty-three thousand, eleven".