1313122111312 has 40 divisors (see below), whose sum is σ = 2938725159552. Its totient is φ = 561763468800.

The previous prime is 1313122111187. The next prime is 1313122111333. The reversal of 1313122111312 is 2131112213131.

It is a super-2 number, since 2×1313122111312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219435864 + ... + 219441847.

Almost surely, 2^{1313122111312} is an apocalyptic number.

It is an amenable number.

1313122111312 is an abundant number, since it is smaller than the sum of its proper divisors (1625603048240).

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

1313122111312 is a wasteful number, since it uses less digits than its factorization.

1313122111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438877747 (or 438877741 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

Adding to 1313122111312 its reverse (2131112213131), we get a palindrome (3444234324443).

The spelling of 1313122111312 in words is "one trillion, three hundred thirteen billion, one hundred twenty-two million, one hundred eleven thousand, three hundred twelve".