11133420545 has 8 divisors (see below), whose sum is σ = 14387805096. Its totient is φ = 8221602816.

The previous prime is 11133420521. The next prime is 11133420559. The reversal of 11133420545 is 54502433111.

It can be written as a sum of positive squares in 4 ways, for example, as 638401 + 11132782144 = 799^2 + 105512^2 .

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 11133420545 - 2¹² = 11133416449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85641632 + ... + 85641761.

It is an arithmetic number, because the mean of its divisors is an integer number (1798475637).

Almost surely, 2^11133420545 is an apocalyptic number.

It is an amenable number.

11133420545 is a deficient number, since it is larger than the sum of its proper divisors (3254384551).

11133420545 is a wasteful number, since it uses less digits than its factorization.

11133420545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171283411.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 11133420545 its reverse (54502433111), we get a palindrome (65635853656).

The spelling of 11133420545 in words is "eleven billion, one hundred thirty-three million, four hundred twenty thousand, five hundred forty-five".