2321125073540 has 144 divisors (see below), whose sum is σ = 6110404921152. Its totient is φ = 734109352704.

The previous prime is 2321125073521. The next prime is 2321125073569. The reversal of 2321125073540 is 453705211232.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2321125073540.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19343207 + ... + 19462833.

It is an arithmetic number, because the mean of its divisors is an integer number (42433367508).

Almost surely, 2^{2321125073540} is an apocalyptic number.

2321125073540 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 2321125073540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3055202460576).

2321125073540 is an abundant number, since it is smaller than the sum of its proper divisors (3789279847612).

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

2321125073540 is a wasteful number, since it uses less digits than its factorization.

2321125073540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121186 (or 121177 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 2321125073540 in words is "two trillion, three hundred twenty-one billion, one hundred twenty-five million, seventy-three thousand, five hundred forty".