105020011 has 8 divisors (see below), whose sum is σ = 110888000. Its totient is φ = 99186120.

The previous prime is 105020009. The next prime is 105020051. The reversal of 105020011 is 110020501.

It is a happy number.

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 105020011 - 2¹ = 105020009 is a prime.

It is a super-2 number, since 2×105020011² = 22058405420880242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105020011.

It is not an unprimeable number, because it can be changed into a prime (105020051) 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, 2061 + ... + 14638.

It is an arithmetic number, because the mean of its divisors is an integer number (13861000).

Almost surely, 2^105020011 is an apocalyptic number.

105020011 is a deficient number, since it is larger than the sum of its proper divisors (5867989).

105020011 is a wasteful number, since it uses less digits than its factorization.

105020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17049.

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

The square root of 105020011 is about 10247.9271562595. The cubic root of 105020011 is about 471.7993662150.

Adding to 105020011 its reverse (110020501), we get a palindrome (215040512).

The spelling of 105020011 in words is "one hundred five million, twenty thousand, eleven".