99042313 has 2 divisors, whose sum is σ = 99042314. Its totient is φ = 99042312.

The previous prime is 99042299. The next prime is 99042331. The reversal of 99042313 is 31324099.

Together with next prime (99042331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99042304 + 9 = 9952^2 + 3^2 .

It is an emirp because it is prime and its reverse (31324099) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99042313 is a prime.

It is not a weakly prime, because it can be changed into another prime (99042343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49521156 + 49521157.

It is an arithmetic number, because the mean of its divisors is an integer number (49521157).

Almost surely, 2^99042313 is an apocalyptic number.

It is an amenable number.

99042313 is a deficient number, since it is larger than the sum of its proper divisors (1).

99042313 is an equidigital number, since it uses as much as digits as its factorization.

99042313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 99042313 is about 9952.0004521704. Note that the first 3 decimals coincide. The cubic root of 99042313 is about 462.6723981601.

The spelling of 99042313 in words is "ninety-nine million, forty-two thousand, three hundred thirteen".