13128835112252 has 24 divisors (see below), whose sum is σ = 23975091939456. Its totient is φ = 6278825448368.

The previous prime is 13128835112231. The next prime is 13128835112293. The reversal of 13128835112252 is 25221153882131.

It is a super-2 number, since 2×13128835112252² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131143 + ... + 5247585.

It is an arithmetic number, because the mean of its divisors is an integer number (998962164144).

Almost surely, 2^{13128835112252} is an apocalyptic number.

It is an amenable number.

13128835112252 is a deficient number, since it is larger than the sum of its proper divisors (10846256827204).

13128835112252 is a wasteful number, since it uses less digits than its factorization.

13128835112252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151137 (or 4151135 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

Adding to 13128835112252 its reverse (25221153882131), we get a palindrome (38349988994383).

The spelling of 13128835112252 in words is "thirteen trillion, one hundred twenty-eight billion, eight hundred thirty-five million, one hundred twelve thousand, two hundred fifty-two".