99317395052261 has 2 divisors, whose sum is σ = 99317395052262. Its totient is φ = 99317395052260.

The previous prime is 99317395052233. The next prime is 99317395052297. The reversal of 99317395052261 is 16225059371399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94070116050625 + 5247279001636 = 9698975^2 + 2290694^2 .

It is a cyclic number.

It is not a de Polignac number, because 99317395052261 - 2¹⁴ = 99317395035877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99317395052194 and 99317395052203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99317395052221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49658697526130 + 49658697526131.

It is an arithmetic number, because the mean of its divisors is an integer number (49658697526131).

Almost surely, 2^{99317395052261} is an apocalyptic number.

It is an amenable number.

99317395052261 is a deficient number, since it is larger than the sum of its proper divisors (1).

99317395052261 is an equidigital number, since it uses as much as digits as its factorization.

99317395052261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27556200, while the sum is 62.

The spelling of 99317395052261 in words is "ninety-nine trillion, three hundred seventeen billion, three hundred ninety-five million, fifty-two thousand, two hundred sixty-one".