1112940109 has 4 divisors (see below), whose sum is σ = 1123959420. Its totient is φ = 1101920800.

The previous prime is 1112940091. The next prime is 1112940113. The reversal of 1112940109 is 9010492111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9010492111 = 2381 ⋅3784331.

It can be written as a sum of positive squares in 2 ways, for example, as 574560900 + 538379209 = 23970^2 + 23203^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112940109 - 2¹¹ = 1112938061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112940709) 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, 5509504 + ... + 5509705.

It is an arithmetic number, because the mean of its divisors is an integer number (280989855).

Almost surely, 2^1112940109 is an apocalyptic number.

It is an amenable number.

1112940109 is a deficient number, since it is larger than the sum of its proper divisors (11019311).

1112940109 is a wasteful number, since it uses less digits than its factorization.

1112940109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019310.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1112940109 is about 33360.7570207872. The cubic root of 1112940109 is about 1036.3121692730.

The spelling of 1112940109 in words is "one billion, one hundred twelve million, nine hundred forty thousand, one hundred nine".