1103101220 has 96 divisors (see below), whose sum is σ = 2542700160. Its totient is φ = 399559680.

The previous prime is 1103101133. The next prime is 1103101249. The reversal of 1103101220 is 221013011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4734224 + ... + 4734456.

It is an arithmetic number, because the mean of its divisors is an integer number (26486460).

Almost surely, 2^1103101220 is an apocalyptic number.

1103101220 is a gapful number since it is divisible by the number (10) 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 1103101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271350080).

1103101220 is an abundant number, since it is smaller than the sum of its proper divisors (1439598940).

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

1103101220 is a wasteful number, since it uses less digits than its factorization.

1103101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 523 counting only the distinct ones).

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

The square root of 1103101220 is about 33212.9676481943. The cubic root of 1103101220 is about 1033.2493045326.

Adding to 1103101220 its reverse (221013011), we get a palindrome (1324114231).

The spelling of 1103101220 in words is "one billion, one hundred three million, one hundred one thousand, two hundred twenty".