99401011 has 2 divisors, whose sum is σ = 99401012. Its totient is φ = 99401010.

The previous prime is 99400991. The next prime is 99401033. The reversal of 99401011 is 11010499.

It is a weak prime.

It is an emirp because it is prime and its reverse (11010499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99401011 - 2¹⁷ = 99269939 is a prime.

It is not a weakly prime, because it can be changed into another prime (99401051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49700505 + 49700506.

It is an arithmetic number, because the mean of its divisors is an integer number (49700506).

Almost surely, 2^99401011 is an apocalyptic number.

99401011 is a deficient number, since it is larger than the sum of its proper divisors (1).

99401011 is an equidigital number, since it uses as much as digits as its factorization.

99401011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 99401011 is about 9970.0055666985. The cubic root of 99401011 is about 463.2302732438.

The spelling of 99401011 in words is "ninety-nine million, four hundred one thousand, eleven".