11285240231018 has 16 divisors (see below), whose sum is σ = 18417941634120. Its totient is φ = 5154875790336.

The previous prime is 11285240231017. The next prime is 11285240231087. The reversal of 11285240231018 is 81013204258211.

It can be written as a sum of positive squares in 4 ways, for example, as 10681242359089 + 603997871929 = 3268217^2 + 777173^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11285240231017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2237356763 + ... + 2237361806.

Almost surely, 2^{11285240231018} is an apocalyptic number.

11285240231018 is a deficient number, since it is larger than the sum of its proper divisors (7132701403102).

11285240231018 is a wasteful number, since it uses less digits than its factorization.

11285240231018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474718681.

The product of its (nonzero) digits is 30720, while the sum is 38.

Adding to 11285240231018 its reverse (81013204258211), we get a palindrome (92298444489229).

The spelling of 11285240231018 in words is "eleven trillion, two hundred eighty-five billion, two hundred forty million, two hundred thirty-one thousand, eighteen".