13011230312 has 8 divisors (see below), whose sum is σ = 24396056850. Its totient is φ = 6505615152.

The previous prime is 13011230299. The next prime is 13011230329. The reversal of 13011230312 is 21303211031.

13011230312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8022068356 + 4989161956 = 89566^2 + 70634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13011230312² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813201887 + ... + 813201902.

Almost surely, 2^13011230312 is an apocalyptic number.

It is an amenable number.

13011230312 is a deficient number, since it is larger than the sum of its proper divisors (11384826538).

13011230312 is a wasteful number, since it uses less digits than its factorization.

13011230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626403795 (or 1626403791 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13011230312 its reverse (21303211031), we get a palindrome (34314441343).

The spelling of 13011230312 in words is "thirteen billion, eleven million, two hundred thirty thousand, three hundred twelve".