9100020100 has 36 divisors (see below), whose sum is σ = 20908638324. Its totient is φ = 3425889280.

The previous prime is 9100020071. The next prime is 9100020121. The reversal of 9100020100 is 10200019.

It can be written as a sum of positive squares in 6 ways, for example, as 389904516 + 8710115584 = 19746^2 + 93328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2674777 + ... + 2678176.

It is an arithmetic number, because the mean of its divisors is an integer number (580795509).

Almost surely, 2^9100020100 is an apocalyptic number.

It is an amenable number.

9100020100 is an abundant number, since it is smaller than the sum of its proper divisors (11808618224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9100020100 is a wasteful number, since it uses less digits than its factorization.

9100020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352984 (or 5352977 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 9100020100 is about 95394.0254942625. The cubic root of 9100020100 is about 2087.7610158039.

Adding to 9100020100 its reverse (10200019), we get a palindrome (9110220119).

The spelling of 9100020100 in words is "nine billion, one hundred million, twenty thousand, one hundred".