2312126438128 has 80 divisors (see below), whose sum is σ = 4862862194400. Its totient is φ = 1058626483200.

The previous prime is 2312126438117. The next prime is 2312126438183. The reversal of 2312126438128 is 8218346212132.

2312126438128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37583778 + ... + 37645246.

It is an arithmetic number, because the mean of its divisors is an integer number (60785777430).

Almost surely, 2^{2312126438128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2312126438128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2431431097200).

2312126438128 is an abundant number, since it is smaller than the sum of its proper divisors (2550735756272).

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

2312126438128 is a wasteful number, since it uses less digits than its factorization.

2312126438128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62930 (or 62924 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The spelling of 2312126438128 in words is "two trillion, three hundred twelve billion, one hundred twenty-six million, four hundred thirty-eight thousand, one hundred twenty-eight".