1100020111 has 8 divisors (see below), whose sum is σ = 1116093600. Its totient is φ = 1083962880.

The previous prime is 1100020099. The next prime is 1100020127. The reversal of 1100020111 is 1110200011.

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 1100020111 - 2²³ = 1091631503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100020094 and 1100020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100020211) 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, 222555 + ... + 227443.

It is an arithmetic number, because the mean of its divisors is an integer number (139511700).

Almost surely, 2^1100020111 is an apocalyptic number.

1100020111 is a deficient number, since it is larger than the sum of its proper divisors (16073489).

1100020111 is an equidigital number, since it uses as much as digits as its factorization.

1100020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1100020111 is about 33166.5510869008. The cubic root of 1100020111 is about 1032.2864063833.

Adding to 1100020111 its reverse (1110200011), we get a palindrome (2210220122).

The spelling of 1100020111 in words is "one billion, one hundred million, twenty thousand, one hundred eleven".