9109200920 has 16 divisors (see below), whose sum is σ = 20495702160. Its totient is φ = 3643680352.

The previous prime is 9109200911. The next prime is 9109200931. The reversal of 9109200920 is 290029019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113864972 + ... + 113865051.

It is an arithmetic number, because the mean of its divisors is an integer number (1280981385).

Almost surely, 2^9109200920 is an apocalyptic number.

It is an amenable number.

9109200920 is an abundant number, since it is smaller than the sum of its proper divisors (11386501240).

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

9109200920 is a wasteful number, since it uses less digits than its factorization.

9109200920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227730034 (or 227730030 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 9109200920 is about 95442.1338822640. The cubic root of 9109200920 is about 2088.4628793031.

Adding to 9109200920 its reverse (290029019), we get a palindrome (9399229939).

The spelling of 9109200920 in words is "nine billion, one hundred nine million, two hundred thousand, nine hundred twenty".