11531454045 has 16 divisors (see below), whose sum is σ = 18452957760. Its totient is φ = 6149231744.

The previous prime is 11531454031. The next prime is 11531454101. The reversal of 11531454045 is 54045413511.

11531454045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11531454045 - 2⁴ = 11531454029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11531453997 and 11531454015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61882 + ... + 163988.

It is an arithmetic number, because the mean of its divisors is an integer number (1153309860).

Almost surely, 2^11531454045 is an apocalyptic number.

11531454045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11531454045 is a deficient number, since it is larger than the sum of its proper divisors (6921503715).

11531454045 is a wasteful number, since it uses less digits than its factorization.

11531454045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109644.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 11531454045 its reverse (54045413511), we get a palindrome (65576867556).

The spelling of 11531454045 in words is "eleven billion, five hundred thirty-one million, four hundred fifty-four thousand, forty-five".