1105011900 has 108 divisors (see below), whose sum is σ = 3667390272. Its totient is φ = 277332480.

The previous prime is 1105011871. The next prime is 1105011907. The reversal of 1105011900 is 91105011.

It is a super-2 number, since 2×1105011900² = 2442102598283220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105011907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20812 + ... + 51411.

Almost surely, 2^1105011900 is an apocalyptic number.

1105011900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105011900 is an abundant number, since it is smaller than the sum of its proper divisors (2562378372).

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

1105011900 is a wasteful number, since it uses less digits than its factorization.

1105011900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72260 (or 72250 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 18.

The square root of 1105011900 is about 33241.7192696166. The cubic root of 1105011900 is about 1033.8455236282.

Adding to 1105011900 its reverse (91105011), we get a palindrome (1196116911).

The spelling of 1105011900 in words is "one billion, one hundred five million, eleven thousand, nine hundred".