2100443013240 has 256 divisors, whose sum is σ = 7513456043520. Its totient is φ = 463013591040.

The previous prime is 2100443013211. The next prime is 2100443013247. The reversal of 2100443013240 is 423103440012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2100443013240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100443013247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236262 + ... + 2063178.

It is an arithmetic number, because the mean of its divisors is an integer number (29349437670).

Almost surely, 2^{2100443013240} is an apocalyptic number.

2100443013240 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 2100443013240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3756728021760).

2100443013240 is an abundant number, since it is smaller than the sum of its proper divisors (5413013030280).

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

2100443013240 is a wasteful number, since it uses less digits than its factorization.

2100443013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827022 (or 1827018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2100443013240 its reverse (423103440012), we get a palindrome (2523546453252).

The spelling of 2100443013240 in words is "two trillion, one hundred billion, four hundred forty-three million, thirteen thousand, two hundred forty".