1101223908 has 36 divisors (see below), whose sum is σ = 2830835280. Its totient is φ = 360852336.

The previous prime is 1101223891. The next prime is 1101223913. The reversal of 1101223908 is 8093221011.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1101223908³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257110 + ... + 261357.

Almost surely, 2^1101223908 is an apocalyptic number.

1101223908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1101223908 is an abundant number, since it is smaller than the sum of its proper divisors (1729611372).

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

1101223908 is a wasteful number, since it uses less digits than its factorization.

1101223908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518536 (or 518531 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1101223908 is about 33184.6938813665. The cubic root of 1101223908 is about 1032.6628268514.

Adding to 1101223908 its reverse (8093221011), we get a palindrome (9194444919).

The spelling of 1101223908 in words is "one billion, one hundred one million, two hundred twenty-three thousand, nine hundred eight".