1105110021 has 8 divisors (see below), whose sum is σ = 1481712480. Its totient is φ = 732623792.

The previous prime is 1105110011. The next prime is 1105110037. The reversal of 1105110021 is 1200115011.

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 1105110021 - 2⁷ = 1105109893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1105109979 and 1105110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105110011) 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, 1028430 + ... + 1029503.

It is an arithmetic number, because the mean of its divisors is an integer number (185214060).

Almost surely, 2^1105110021 is an apocalyptic number.

It is an amenable number.

1105110021 is a deficient number, since it is larger than the sum of its proper divisors (376602459).

1105110021 is a wasteful number, since it uses less digits than its factorization.

1105110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058115.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1105110021 is about 33243.1951081721. The cubic root of 1105110021 is about 1033.8761232849.

Adding to 1105110021 its reverse (1200115011), we get a palindrome (2305225032).

The spelling of 1105110021 in words is "one billion, one hundred five million, one hundred ten thousand, twenty-one".