105540042211 has 8 divisors (see below), whose sum is σ = 110414493504. Its totient is φ = 100775129280.

The previous prime is 105540042191. The next prime is 105540042233. The reversal of 105540042211 is 112240045501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105540042211 is a prime.

It is a super-2 number, since 2×105540042211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105540042611) 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, 27382620 + ... + 27386473.

It is an arithmetic number, because the mean of its divisors is an integer number (13801811688).

Almost surely, 2^105540042211 is an apocalyptic number.

105540042211 is a deficient number, since it is larger than the sum of its proper divisors (4874451293).

105540042211 is an equidigital number, since it uses as much as digits as its factorization.

105540042211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54769181.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 105540042211 its reverse (112240045501), we get a palindrome (217780087712).

The spelling of 105540042211 in words is "one hundred five billion, five hundred forty million, forty-two thousand, two hundred eleven".