99455320313 has 2 divisors, whose sum is σ = 99455320314. Its totient is φ = 99455320312.

The previous prime is 99455320277. The next prime is 99455320331. The reversal of 99455320313 is 31302355499.

Together with next prime (99455320331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62056788544 + 37398531769 = 249112^2 + 193387^2 .

It is a cyclic number.

It is not a de Polignac number, because 99455320313 - 2¹⁰ = 99455319289 is a prime.

It is a super-2 number, since 2×99455320313² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99455320333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49727660156 + 49727660157.

It is an arithmetic number, because the mean of its divisors is an integer number (49727660157).

Almost surely, 2^99455320313 is an apocalyptic number.

It is an amenable number.

99455320313 is a deficient number, since it is larger than the sum of its proper divisors (1).

99455320313 is an equidigital number, since it uses as much as digits as its factorization.

99455320313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 437400, while the sum is 44.

The spelling of 99455320313 in words is "ninety-nine billion, four hundred fifty-five million, three hundred twenty thousand, three hundred thirteen".