1220103105 has 24 divisors (see below), whose sum is σ = 2113887168. Its totient is φ = 600664896.

The previous prime is 1220103061. The next prime is 1220103119. The reversal of 1220103105 is 5013010221.

It is not a de Polignac number, because 1220103105 - 2⁷ = 1220102977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238117 + ... + 243186.

It is an arithmetic number, because the mean of its divisors is an integer number (88078632).

Almost surely, 2^1220103105 is an apocalyptic number.

1220103105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1220103105 is a deficient number, since it is larger than the sum of its proper divisors (893784063).

1220103105 is a wasteful number, since it uses less digits than its factorization.

1220103105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481337 (or 481324 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1220103105 is about 34929.9743057449. The cubic root of 1220103105 is about 1068.5598306009.

Adding to 1220103105 its reverse (5013010221), we get a palindrome (6233113326).

The spelling of 1220103105 in words is "one billion, two hundred twenty million, one hundred three thousand, one hundred five".