1100000920 has 16 divisors (see below), whose sum is σ = 2475002160. Its totient is φ = 440000352.

The previous prime is 1100000833. The next prime is 1100000939. The reversal of 1100000920 is 290000011.

It is a self number, because there is not a number n which added to its sum of digits gives 1100000920.

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, 13749972 + ... + 13750051.

It is an arithmetic number, because the mean of its divisors is an integer number (154687635).

Almost surely, 2^1100000920 is an apocalyptic number.

1100000920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100000920 is an abundant number, since it is smaller than the sum of its proper divisors (1375001240).

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

1100000920 is a wasteful number, since it uses less digits than its factorization.

1100000920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27500034 (or 27500030 counting only the distinct ones).

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

The square root of 1100000920 is about 33166.2617730729. The cubic root of 1100000920 is about 1032.2804032435.

Adding to 1100000920 its reverse (290000011), we get a palindrome (1390000931).

The spelling of 1100000920 in words is "one billion, one hundred million, nine hundred twenty", and thus it is an aban number.