99001100101009 has 2 divisors, whose sum is σ = 99001100101010. Its totient is φ = 99001100101008.

The previous prime is 99001100100953. The next prime is 99001100101103. The reversal of 99001100101009 is 90010100110099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87963821483409 + 11037278617600 = 9378903^2 + 3322240^2 .

It is a cyclic number.

It is not a de Polignac number, because 99001100101009 - 2³¹ = 98998952617361 is a prime.

It is not a weakly prime, because it can be changed into another prime (99001100105009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500550050504 + 49500550050505.

It is an arithmetic number, because the mean of its divisors is an integer number (49500550050505).

Almost surely, 2^{99001100101009} is an apocalyptic number.

It is an amenable number.

99001100101009 is a deficient number, since it is larger than the sum of its proper divisors (1).

99001100101009 is an equidigital number, since it uses as much as digits as its factorization.

99001100101009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 99001100101009 in words is "ninety-nine trillion, one billion, one hundred million, one hundred one thousand, nine".