4003131365441 has 4 divisors (see below), whose sum is σ = 4311064547412. Its totient is φ = 3695198183472.

The previous prime is 4003131365323. The next prime is 4003131365477. The reversal of 4003131365441 is 1445631313004.

It is a happy number.

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 260512243216 + 3742619122225 = 510404^2 + 1934585^2 .

It is a cyclic number.

It is not a de Polignac number, because 4003131365441 - 2¹⁸ = 4003131103297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4003131365941) 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, 153966590966 + ... + 153966590991.

It is an arithmetic number, because the mean of its divisors is an integer number (1077766136853).

Almost surely, 2^{4003131365441} is an apocalyptic number.

It is an amenable number.

4003131365441 is a deficient number, since it is larger than the sum of its proper divisors (307933181971).

4003131365441 is a wasteful number, since it uses less digits than its factorization.

4003131365441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307933181970.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 4003131365441 its reverse (1445631313004), we get a palindrome (5448762678445).

The spelling of 4003131365441 in words is "four trillion, three billion, one hundred thirty-one million, three hundred sixty-five thousand, four hundred forty-one".