2103243035544 has 144 divisors (see below), whose sum is σ = 6634195822800. Its totient is φ = 600209495424.

The previous prime is 2103243035539. The next prime is 2103243035603. The reversal of 2103243035544 is 4455303423012.

2103243035544 is a `hidden beast` number, since 2 + 10 + 32 + 43 + 0 + 35 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2103243035499 and 2103243035508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2604714 + ... + 3315270.

It is an arithmetic number, because the mean of its divisors is an integer number (46070804325).

Almost surely, 2^{2103243035544} is an apocalyptic number.

2103243035544 is a gapful number since it is divisible by the number (24) 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 2103243035544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3317097911400).

2103243035544 is an abundant number, since it is smaller than the sum of its proper divisors (4530952787256).

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

2103243035544 is a wasteful number, since it uses less digits than its factorization.

2103243035544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711422 (or 711408 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 2103243035544 its reverse (4455303423012), we get a palindrome (6558546458556).

The spelling of 2103243035544 in words is "two trillion, one hundred three billion, two hundred forty-three million, thirty-five thousand, five hundred forty-four".