11113205445 has 24 divisors (see below), whose sum is σ = 19265356032. Its totient is φ = 5926284000.

The previous prime is 11113205429. The next prime is 11113205447. The reversal of 11113205445 is 54450231111.

11113205445 is a `hidden beast` number, since 1 + 1 + 1 + 13 + 205 + 445 = 666.

It is not a de Polignac number, because 11113205445 - 2⁴ = 11113205429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113205447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 624420 + ... + 641970.

It is an arithmetic number, because the mean of its divisors is an integer number (802723168).

Almost surely, 2^11113205445 is an apocalyptic number.

11113205445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11113205445 is a deficient number, since it is larger than the sum of its proper divisors (8152150587).

11113205445 is a wasteful number, since it uses less digits than its factorization.

11113205445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31633 (or 31630 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 11113205445 its reverse (54450231111), we get a palindrome (65563436556).

It can be divided in two parts, 1111320 and 5445, that added together give a triangular number (1116765 = T₁₄₉₄).

The spelling of 11113205445 in words is "eleven billion, one hundred thirteen million, two hundred five thousand, four hundred forty-five".