99941321 has 2 divisors, whose sum is σ = 99941322. Its totient is φ = 99941320.

The previous prime is 99941299. The next prime is 99941447. The reversal of 99941321 is 12314999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 17131321 = 9100^2 + 4139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99941321 is a prime.

It is not a weakly prime, because it can be changed into another prime (99941021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49970660 + 49970661.

It is an arithmetic number, because the mean of its divisors is an integer number (49970661).

Almost surely, 2^99941321 is an apocalyptic number.

It is an amenable number.

99941321 is a deficient number, since it is larger than the sum of its proper divisors (1).

99941321 is an equidigital number, since it uses as much as digits as its factorization.

99941321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 99941321 is about 9997.0656194705. The cubic root of 99941321 is about 464.0680776673.

The spelling of 99941321 in words is "ninety-nine million, nine hundred forty-one thousand, three hundred twenty-one".