11123579135579 has 4 divisors (see below), whose sum is σ = 11140613713776. Its totient is φ = 11106544557384.

The previous prime is 11123579135567. The next prime is 11123579135623. The reversal of 11123579135579 is 97553197532111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11123579135579 - 2⁸ = 11123579135323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123579135519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8517288119 + ... + 8517289424.

It is an arithmetic number, because the mean of its divisors is an integer number (2785153428444).

Almost surely, 2^{11123579135579} is an apocalyptic number.

11123579135579 is a deficient number, since it is larger than the sum of its proper divisors (17034578197).

11123579135579 is an equidigital number, since it uses as much as digits as its factorization.

11123579135579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17034578196.

The product of its digits is 8930250, while the sum is 59.

The spelling of 11123579135579 in words is "eleven trillion, one hundred twenty-three billion, five hundred seventy-nine million, one hundred thirty-five thousand, five hundred seventy-nine".