12013020012128 has 24 divisors (see below), whose sum is σ = 24289839452592. Its totient is φ = 5844171897216.

The previous prime is 12013020012121. The next prime is 12013020012277. The reversal of 12013020012128 is 82121002031021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013020012121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5073064700 + ... + 5073067067.

It is an arithmetic number, because the mean of its divisors is an integer number (1012076643858).

Almost surely, 2^{12013020012128} is an apocalyptic number.

It is an amenable number.

12013020012128 is an abundant number, since it is smaller than the sum of its proper divisors (12276819440464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12013020012128 is a wasteful number, since it uses less digits than its factorization.

12013020012128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146131814 (or 10146131806 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 12013020012128 its reverse (82121002031021), we get a palindrome (94134022043149).

The spelling of 12013020012128 in words is "twelve trillion, thirteen billion, twenty million, twelve thousand, one hundred twenty-eight".