2303318537491 has 2 divisors, whose sum is σ = 2303318537492. Its totient is φ = 2303318537490.

The previous prime is 2303318537483. The next prime is 2303318537521. The reversal of 2303318537491 is 1947358133032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2303318537491 - 2³ = 2303318537483 is a prime.

It is not a weakly prime, because it can be changed into another prime (2303318537591) 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 as a sum of consecutive naturals, namely, 1151659268745 + 1151659268746.

It is an arithmetic number, because the mean of its divisors is an integer number (1151659268746).

Almost surely, 2^{2303318537491} is an apocalyptic number.

2303318537491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303318537491 is an equidigital number, since it uses as much as digits as its factorization.

2303318537491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 2303318537491 in words is "two trillion, three hundred three billion, three hundred eighteen million, five hundred thirty-seven thousand, four hundred ninety-one".