12128083254 has 144 divisors (see below), whose sum is σ = 32358134016. Its totient is φ = 3214713600.

The previous prime is 12128083223. The next prime is 12128083259. The reversal of 12128083254 is 45238082121.

It is a happy number.

12128083254 is a `hidden beast` number, since 121 + 280 + 8 + 3 + 254 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128083259) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2583049 + ... + 2587739.

It is an arithmetic number, because the mean of its divisors is an integer number (224709264).

Almost surely, 2^12128083254 is an apocalyptic number.

12128083254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12128083254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16179067008).

12128083254 is an abundant number, since it is smaller than the sum of its proper divisors (20230050762).

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

12128083254 is a wasteful number, since it uses less digits than its factorization.

12128083254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811 (or 4791 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 12128083254 in words is "twelve billion, one hundred twenty-eight million, eighty-three thousand, two hundred fifty-four".