11105431345 has 4 divisors (see below), whose sum is σ = 13326517620. Its totient is φ = 8884345072.

The previous prime is 11105431333. The next prime is 11105431349. The reversal of 11105431345 is 54313450111.

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 6774606864 + 4330824481 = 82308^2 + 65809^2 .

It is a cyclic number.

It is not a de Polignac number, because 11105431345 - 2⁵ = 11105431313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11105431349) 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, 1110543130 + ... + 1110543139.

It is an arithmetic number, because the mean of its divisors is an integer number (3331629405).

Almost surely, 2^11105431345 is an apocalyptic number.

It is an amenable number.

11105431345 is a deficient number, since it is larger than the sum of its proper divisors (2221086275).

11105431345 is an equidigital number, since it uses as much as digits as its factorization.

11105431345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221086274.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 11105431345 its reverse (54313450111), we get a palindrome (65418881456).

The spelling of 11105431345 in words is "eleven billion, one hundred five million, four hundred thirty-one thousand, three hundred forty-five".