11205544123 has 8 divisors (see below), whose sum is σ = 11258975520. Its totient is φ = 11152189440.

The previous prime is 11205544121. The next prime is 11205544153. The reversal of 11205544123 is 32144550211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11205544123 - 2¹ = 11205544121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11205544091 and 11205544100.

It is not an unprimeable number, because it can be changed into a prime (11205544121) 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 7 ways as a sum of consecutive naturals, for example, 285058 + ... + 321976.

It is an arithmetic number, because the mean of its divisors is an integer number (1407371940).

Almost surely, 2^11205544123 is an apocalyptic number.

11205544123 is a deficient number, since it is larger than the sum of its proper divisors (53431397).

11205544123 is a wasteful number, since it uses less digits than its factorization.

11205544123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38357.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 11205544123 in words is "eleven billion, two hundred five million, five hundred forty-four thousand, one hundred twenty-three".