40103205253541 has 4 divisors (see below), whose sum is σ = 40269608595084. Its totient is φ = 39936801912000.

The previous prime is 40103205253519. The next prime is 40103205253547. The reversal of 40103205253541 is 14535250230104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12257848256641 + 27845356996900 = 3501121^2 + 5276870^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103205253541 - 2¹⁸ = 40103204991397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103205253547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83201670410 + ... + 83201670891.

It is an arithmetic number, because the mean of its divisors is an integer number (10067402148771).

Almost surely, 2^{40103205253541} is an apocalyptic number.

It is an amenable number.

40103205253541 is a deficient number, since it is larger than the sum of its proper divisors (166403341543).

40103205253541 is a wasteful number, since it uses less digits than its factorization.

40103205253541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166403341542.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 40103205253541 its reverse (14535250230104), we get a palindrome (54638455483645).

The spelling of 40103205253541 in words is "forty trillion, one hundred three billion, two hundred five million, two hundred fifty-three thousand, five hundred forty-one".