2103554240545 has 8 divisors (see below), whose sum is σ = 2552627618280. Its totient is φ = 1663935039360.

The previous prime is 2103554240531. The next prime is 2103554240569. The reversal of 2103554240545 is 5450424553012.

It can be written as a sum of positive squares in 4 ways, for example, as 34792694784 + 2068761545761 = 186528^2 + 1438319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2103554240545 - 2²³ = 2103545851937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103554240498 and 2103554240507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2363543646 + ... + 2363544535.

It is an arithmetic number, because the mean of its divisors is an integer number (319078452285).

Almost surely, 2^{2103554240545} is an apocalyptic number.

It is an amenable number.

2103554240545 is a deficient number, since it is larger than the sum of its proper divisors (449073377735).

2103554240545 is an equidigital number, since it uses as much as digits as its factorization.

2103554240545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727088275.

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 2103554240545 its reverse (5450424553012), we get a palindrome (7553978793557).

The spelling of 2103554240545 in words is "two trillion, one hundred three billion, five hundred fifty-four million, two hundred forty thousand, five hundred forty-five".