1103423112 has 192 divisors, whose sum is σ = 3368252160. Its totient is φ = 323481600.

The previous prime is 1103423051. The next prime is 1103423149. The reversal of 1103423112 is 2113243011.

1103423112 is a `hidden beast` number, since 1 + 10 + 342 + 311 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4071537 + ... + 4071807.

It is an arithmetic number, because the mean of its divisors is an integer number (17542980).

Almost surely, 2^1103423112 is an apocalyptic number.

1103423112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103423112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684126080).

1103423112 is an abundant number, since it is smaller than the sum of its proper divisors (2264829048).

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

1103423112 is a wasteful number, since it uses less digits than its factorization.

1103423112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1103423112 is about 33217.8131730552. The cubic root of 1103423112 is about 1033.3497976796.

Adding to 1103423112 its reverse (2113243011), we get a palindrome (3216666123).

The spelling of 1103423112 in words is "one billion, one hundred three million, four hundred twenty-three thousand, one hundred twelve".