1101103220 has 24 divisors (see below), whose sum is σ = 2642648064. Its totient is φ = 377521056.

The previous prime is 1101103217. The next prime is 1101103247. The reversal of 1101103220 is 223011011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3932372 + ... + 3932651.

It is an arithmetic number, because the mean of its divisors is an integer number (110110336).

Almost surely, 2^1101103220 is an apocalyptic number.

1101103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101103220 is an abundant number, since it is smaller than the sum of its proper divisors (1541544844).

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

1101103220 is a wasteful number, since it uses less digits than its factorization.

1101103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865039 (or 7865037 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1101103220 is about 33182.8754028339. The cubic root of 1101103220 is about 1032.6251007773.

Adding to 1101103220 its reverse (223011011), we get a palindrome (1324114231).

The spelling of 1101103220 in words is "one billion, one hundred one million, one hundred three thousand, two hundred twenty".