13033121312 has 24 divisors (see below), whose sum is σ = 25727771916. Its totient is φ = 6499084032.

The previous prime is 13033121293. The next prime is 13033121329. The reversal of 13033121312 is 21312133031.

It can be written as a sum of positive squares in 2 ways, for example, as 12815145616 + 217975696 = 113204^2 + 14764^2 .

It is a super-2 number, since 2×13033121312² (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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534023 + ... + 557894.

Almost surely, 2^13033121312 is an apocalyptic number.

It is an amenable number.

13033121312 is a deficient number, since it is larger than the sum of its proper divisors (12694650604).

13033121312 is a wasteful number, since it uses less digits than its factorization.

13033121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092300 (or 1092292 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13033121312 its reverse (21312133031), we get a palindrome (34345254343).

The spelling of 13033121312 in words is "thirteen billion, thirty-three million, one hundred twenty-one thousand, three hundred twelve".