105210011 has 4 divisors (see below), whose sum is σ = 110747400. Its totient is φ = 99672624.

The previous prime is 105209989. The next prime is 105210013. The reversal of 105210011 is 110012501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110012501 = 109 ⋅1009289.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105210011 is a prime.

It is a super-2 number, since 2×105210011² = 22138292829240242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105209974 and 105210001.

It is not an unprimeable number, because it can be changed into a prime (105210013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768666 + ... + 2768703.

It is an arithmetic number, because the mean of its divisors is an integer number (27686850).

Almost surely, 2^105210011 is an apocalyptic number.

105210011 is a deficient number, since it is larger than the sum of its proper divisors (5537389).

105210011 is an equidigital number, since it uses as much as digits as its factorization.

105210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537388.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 105210011 is about 10257.1931345763. The cubic root of 105210011 is about 472.0837179736.

Adding to 105210011 its reverse (110012501), we get a palindrome (215222512).

The spelling of 105210011 in words is "one hundred five million, two hundred ten thousand, eleven".