2303302540513 has 4 divisors (see below), whose sum is σ = 2480479659028. Its totient is φ = 2126125422000.

The previous prime is 2303302540493. The next prime is 2303302540639. The reversal of 2303302540513 is 3150452033032.

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 1436900869264 + 866401671249 = 1198708^2 + 930807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2303302540513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2303302544513) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 88588559238 + ... + 88588559263.

It is an arithmetic number, because the mean of its divisors is an integer number (620119914757).

Almost surely, 2^{2303302540513} is an apocalyptic number.

It is an amenable number.

2303302540513 is a deficient number, since it is larger than the sum of its proper divisors (177177118515).

2303302540513 is a wasteful number, since it uses less digits than its factorization.

2303302540513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177177118514.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 2303302540513 its reverse (3150452033032), we get a palindrome (5453754573545).

The spelling of 2303302540513 in words is "two trillion, three hundred three billion, three hundred two million, five hundred forty thousand, five hundred thirteen".