12551323112020 has 48 divisors (see below), whose sum is σ = 32861645970048. Its totient is φ = 3912100709760.

The previous prime is 12551323112011. The next prime is 12551323112023. The reversal of 12551323112020 is 2021132315521.

12551323112020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12551323112020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551323112023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075103367 + ... + 4075106446.

It is an arithmetic number, because the mean of its divisors is an integer number (684617624376).

Almost surely, 2^{12551323112020} is an apocalyptic number.

12551323112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12551323112020 is an abundant number, since it is smaller than the sum of its proper divisors (20310322858028).

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

12551323112020 is a wasteful number, since it uses less digits than its factorization.

12551323112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8150209840 (or 8150209838 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 12551323112020 its reverse (2021132315521), we get a palindrome (14572455427541).

The spelling of 12551323112020 in words is "twelve trillion, five hundred fifty-one billion, three hundred twenty-three million, one hundred twelve thousand, twenty".