105120435011 has 4 divisors (see below), whose sum is σ = 105121108632. Its totient is φ = 105119761392.

The previous prime is 105120434999. The next prime is 105120435041. The reversal of 105120435011 is 110534021501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 110534021501 = 19 ⋅5817580079.

It is a cyclic number.

It is not a de Polignac number, because 105120435011 - 2²² = 105116240707 is a prime.

It is a super-2 number, since 2×105120435011² (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 (105120435041) 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, 31580 + ... + 459606.

It is an arithmetic number, because the mean of its divisors is an integer number (26280277158).

Almost surely, 2^105120435011 is an apocalyptic number.

105120435011 is a deficient number, since it is larger than the sum of its proper divisors (673621).

105120435011 is an equidigital number, since it uses as much as digits as its factorization.

105120435011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673620.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 105120435011 its reverse (110534021501), we get a palindrome (215654456512).

The spelling of 105120435011 in words is "one hundred five billion, one hundred twenty million, four hundred thirty-five thousand, eleven".