105505100505011 has 4 divisors (see below), whose sum is σ = 106776246294312. Its totient is φ = 104233954715712.

The previous prime is 105505100504989. The next prime is 105505100505019. The reversal of 105505100505011 is 110505001505501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105505100505011 - 2¹⁰ = 105505100503987 is a prime.

It is a super-2 number, since 2×105505100505011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105505100505019) 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, 635572894526 + ... + 635572894691.

It is an arithmetic number, because the mean of its divisors is an integer number (26694061573578).

Almost surely, 2^{105505100505011} is an apocalyptic number.

105505100505011 is a deficient number, since it is larger than the sum of its proper divisors (1271145789301).

105505100505011 is an equidigital number, since it uses as much as digits as its factorization.

105505100505011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271145789300.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 105505100505011 in words is "one hundred five trillion, five hundred five billion, one hundred million, five hundred five thousand, eleven".