1313012221012 has 12 divisors (see below), whose sum is σ = 2302755709716. Its totient is φ = 655082018240.

The previous prime is 1313012220977. The next prime is 1313012221021. The reversal of 1313012221012 is 2101222103131.

It can be written as a sum of positive squares in 2 ways, for example, as 769262309776 + 543749911236 = 877076^2 + 737394^2 .

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, 356020993 + ... + 356024680.

It is an arithmetic number, because the mean of its divisors is an integer number (191896309143).

Almost surely, 2^{1313012221012} is an apocalyptic number.

It is an amenable number.

1313012221012 is a deficient number, since it is larger than the sum of its proper divisors (989743488704).

1313012221012 is a wasteful number, since it uses less digits than its factorization.

1313012221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712046138 (or 712046136 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1313012221012 its reverse (2101222103131), we get a palindrome (3414234324143).

The spelling of 1313012221012 in words is "one trillion, three hundred thirteen billion, twelve million, two hundred twenty-one thousand, twelve".