2125124054240 has 96 divisors (see below), whose sum is σ = 5478259941504. Its totient is φ = 772598039040.

The previous prime is 2125124054191. The next prime is 2125124054267. The reversal of 2125124054240 is 424504215212.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2125124054197 and 2125124054206.

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, 7798367 + ... + 8066273.

It is an arithmetic number, because the mean of its divisors is an integer number (57065207724).

Almost surely, 2^{2125124054240} is an apocalyptic number.

2125124054240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125124054240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739129970752).

2125124054240 is an abundant number, since it is smaller than the sum of its proper divisors (3353135887264).

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

2125124054240 is a wasteful number, since it uses less digits than its factorization.

2125124054240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272440 (or 272432 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 2125124054240 its reverse (424504215212), we get a palindrome (2549628269452).

The spelling of 2125124054240 in words is "two trillion, one hundred twenty-five billion, one hundred twenty-four million, fifty-four thousand, two hundred forty".