1313103131312 has 60 divisors (see below), whose sum is σ = 3022474986720. Its totient is φ = 550784884608.

The previous prime is 1313103131311. The next prime is 1313103131323. The reversal of 1313103131312 is 2131313013131.

It is a super-2 number, since 2×1313103131312² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313103131311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17780987 + ... + 17854682.

It is an arithmetic number, because the mean of its divisors is an integer number (50374583112).

Almost surely, 2^{1313103131312} is an apocalyptic number.

It is an amenable number.

1313103131312 is an abundant number, since it is smaller than the sum of its proper divisors (1709371855408).

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

1313103131312 is a wasteful number, since it uses less digits than its factorization.

1313103131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35635738 (or 35635725 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1313103131312 its reverse (2131313013131), we get a palindrome (3444416144443).

The spelling of 1313103131312 in words is "one trillion, three hundred thirteen billion, one hundred three million, one hundred thirty-one thousand, three hundred twelve".