1105200121 has 8 divisors (see below), whose sum is σ = 1148353920. Its totient is φ = 1062382608.

The previous prime is 1105200097. The next prime is 1105200139. The reversal of 1105200121 is 1210025011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1105200121 - 2⁷ = 1105199993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105200181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77361 + ... + 90526.

It is an arithmetic number, because the mean of its divisors is an integer number (143544240).

Almost surely, 2^1105200121 is an apocalyptic number.

It is an amenable number.

1105200121 is a deficient number, since it is larger than the sum of its proper divisors (43153799).

1105200121 is a wasteful number, since it uses less digits than its factorization.

1105200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168143.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1105200121 is about 33244.5502451154. The cubic root of 1105200121 is about 1033.9042199466.

Adding to 1105200121 its reverse (1210025011), we get a palindrome (2315225132).

The spelling of 1105200121 in words is "one billion, one hundred five million, two hundred thousand, one hundred twenty-one".