13213213031012 has 12 divisors (see below), whose sum is σ = 23242931732076. Its totient is φ = 6572375393280.

The previous prime is 13213213030993. The next prime is 13213213031089. The reversal of 13213213031012 is 21013031231231.

It can be written as a sum of positive squares in 2 ways, for example, as 4992927684196 + 8220285346816 = 2234486^2 + 2867104^2 .

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, 8557779689 + ... + 8557781232.

It is an arithmetic number, because the mean of its divisors is an integer number (1936910977673).

Almost surely, 2^{13213213031012} is an apocalyptic number.

It is an amenable number.

13213213031012 is a deficient number, since it is larger than the sum of its proper divisors (10029718701064).

13213213031012 is a wasteful number, since it uses less digits than its factorization.

13213213031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17115561118 (or 17115561116 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13213213031012 its reverse (21013031231231), we get a palindrome (34226244262243).

The spelling of 13213213031012 in words is "thirteen trillion, two hundred thirteen billion, two hundred thirteen million, thirty-one thousand, twelve".