1155426803105 has 4 divisors (see below), whose sum is σ = 1386512163732. Its totient is φ = 924341442480.

The previous prime is 1155426803101. The next prime is 1155426803123. The reversal of 1155426803105 is 5013086245511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 821408691856 + 334018111249 = 906316^2 + 577943^2 .

It is not a de Polignac number, because 1155426803105 - 2² = 1155426803101 is a prime.

It is a super-2 number, since 2×1155426803105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155426803101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115542680306 + ... + 115542680315.

It is an arithmetic number, because the mean of its divisors is an integer number (346628040933).

Almost surely, 2^{1155426803105} is an apocalyptic number.

It is an amenable number.

1155426803105 is a deficient number, since it is larger than the sum of its proper divisors (231085360627).

1155426803105 is an equidigital number, since it uses as much as digits as its factorization.

1155426803105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231085360626.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 1155426803105 in words is "one trillion, one hundred fifty-five billion, four hundred twenty-six million, eight hundred three thousand, one hundred five".