1110912820 has 12 divisors (see below), whose sum is σ = 2332916964. Its totient is φ = 444365120.

The previous prime is 1110912809. The next prime is 1110912823. The reversal of 1110912820 is 282190111.

It can be written as a sum of positive squares in 2 ways, for example, as 729648144 + 381264676 = 27012^2 + 19526^2 .

It is a super-3 number, since 3×1110912820³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110912823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27772801 + ... + 27772840.

It is an arithmetic number, because the mean of its divisors is an integer number (194409747).

Almost surely, 2^1110912820 is an apocalyptic number.

1110912820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110912820 is an abundant number, since it is smaller than the sum of its proper divisors (1222004144).

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

1110912820 is a wasteful number, since it uses less digits than its factorization.

1110912820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55545650 (or 55545648 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1110912820 is about 33330.3588339520. The cubic root of 1110912820 is about 1035.6825513271.

The spelling of 1110912820 in words is "one billion, one hundred ten million, nine hundred twelve thousand, eight hundred twenty".