1105102021 has 8 divisors (see below), whose sum is σ = 1137746720. Its totient is φ = 1072773072.

The previous prime is 1105102013. The next prime is 1105102039. The reversal of 1105102021 is 1202015011.

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 1105102021 - 2³ = 1105102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105101992 and 1105102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105102081) 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, 71826 + ... + 85843.

It is an arithmetic number, because the mean of its divisors is an integer number (142218340).

Almost surely, 2^1105102021 is an apocalyptic number.

It is an amenable number.

1105102021 is a deficient number, since it is larger than the sum of its proper divisors (32644699).

1105102021 is a wasteful number, since it uses less digits than its factorization.

1105102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157875.

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

The square root of 1105102021 is about 33243.0747825769. The cubic root of 1105102021 is about 1033.8736285019.

Adding to 1105102021 its reverse (1202015011), we get a palindrome (2307117032).

The spelling of 1105102021 in words is "one billion, one hundred five million, one hundred two thousand, twenty-one".