11455231105 has 4 divisors (see below), whose sum is σ = 13746277332. Its totient is φ = 9164184880.

The previous prime is 11455231079. The next prime is 11455231127. The reversal of 11455231105 is 50113255411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50113255411 = 25541 ⋅1962071.

It can be written as a sum of positive squares in 2 ways, for example, as 3456969616 + 7998261489 = 58796^2 + 89433^2 .

It is not a de Polignac number, because 11455231105 - 2⁷ = 11455230977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145523106 + ... + 1145523115.

It is an arithmetic number, because the mean of its divisors is an integer number (3436569333).

Almost surely, 2^11455231105 is an apocalyptic number.

It is an amenable number.

11455231105 is a deficient number, since it is larger than the sum of its proper divisors (2291046227).

11455231105 is an equidigital number, since it uses as much as digits as its factorization.

11455231105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291046226.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 11455231105 its reverse (50113255411), we get a palindrome (61568486516).

The spelling of 11455231105 in words is "eleven billion, four hundred fifty-five million, two hundred thirty-one thousand, one hundred five".