9985532101 has 2 divisors, whose sum is σ = 9985532102. Its totient is φ = 9985532100.

The previous prime is 9985532077. The next prime is 9985532107. The reversal of 9985532101 is 1012355899.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8784563076 + 1200969025 = 93726^2 + 34655^2 .

It is a cyclic number.

It is not a de Polignac number, because 9985532101 - 2⁵ = 9985532069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9985532107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4992766050 + 4992766051.

It is an arithmetic number, because the mean of its divisors is an integer number (4992766051).

Almost surely, 2^9985532101 is an apocalyptic number.

It is an amenable number.

9985532101 is a deficient number, since it is larger than the sum of its proper divisors (1).

9985532101 is an equidigital number, since it uses as much as digits as its factorization.

9985532101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 9985532101 is about 99927.6343210425. The cubic root of 9985532101 is about 2153.3951837716.

The spelling of 9985532101 in words is "nine billion, nine hundred eighty-five million, five hundred thirty-two thousand, one hundred one".