105234945811 has 4 divisors (see below), whose sum is σ = 106805616712. Its totient is φ = 103664274912.

The previous prime is 105234945787. The next prime is 105234945833. The reversal of 105234945811 is 118549432501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118549432501 = 24121 ⋅4914781.

It is a cyclic number.

It is not a de Polignac number, because 105234945811 - 2¹¹ = 105234943763 is a prime.

It is a super-2 number, since 2×105234945811² (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 (105234945841) 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, 785335350 + ... + 785335483.

It is an arithmetic number, because the mean of its divisors is an integer number (26701404178).

Almost surely, 2^105234945811 is an apocalyptic number.

105234945811 is a deficient number, since it is larger than the sum of its proper divisors (1570670901).

105234945811 is an equidigital number, since it uses as much as digits as its factorization.

105234945811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570670900.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 105234945811 in words is "one hundred five billion, two hundred thirty-four million, nine hundred forty-five thousand, eight hundred eleven".