1105120203 has 8 divisors (see below), whose sum is σ = 1607447616. Its totient is φ = 669769800.

The previous prime is 1105120189. The next prime is 1105120213. The reversal of 1105120203 is 3020215011.

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

It is not a de Polignac number, because 1105120203 - 2⁸ = 1105119947 is a prime.

It is a super-2 number, since 2×1105120203² = 2442581326157522418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1105120213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16744213 + ... + 16744278.

It is an arithmetic number, because the mean of its divisors is an integer number (200930952).

Almost surely, 2^1105120203 is an apocalyptic number.

1105120203 is a deficient number, since it is larger than the sum of its proper divisors (502327413).

1105120203 is a wasteful number, since it uses less digits than its factorization.

1105120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33488505.

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

The square root of 1105120203 is about 33243.3482519436. The cubic root of 1105120203 is about 1033.8792985025.

Adding to 1105120203 its reverse (3020215011), we get a palindrome (4125335214).

The spelling of 1105120203 in words is "one billion, one hundred five million, one hundred twenty thousand, two hundred three".