11534242145 has 4 divisors (see below), whose sum is σ = 13841090580. Its totient is φ = 9227393712.

The previous prime is 11534242121. The next prime is 11534242169. The reversal of 11534242145 is 54124243511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54124243511 = 13 ⋅4163403347.

It is an interprime number because it is at equal distance from previous prime (11534242121) and next prime (11534242169).

It can be written as a sum of positive squares in 2 ways, for example, as 2553078784 + 8981163361 = 50528^2 + 94769^2 .

It is a cyclic number.

It is not a de Polignac number, because 11534242145 - 2⁶ = 11534242081 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1153424210 + ... + 1153424219.

It is an arithmetic number, because the mean of its divisors is an integer number (3460272645).

Almost surely, 2^11534242145 is an apocalyptic number.

It is an amenable number.

11534242145 is a deficient number, since it is larger than the sum of its proper divisors (2306848435).

11534242145 is an equidigital number, since it uses as much as digits as its factorization.

11534242145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306848434.

The product of its digits is 19200, while the sum is 32.

Adding to 11534242145 its reverse (54124243511), we get a palindrome (65658485656).

The spelling of 11534242145 in words is "eleven billion, five hundred thirty-four million, two hundred forty-two thousand, one hundred forty-five".