1105312518 has 24 divisors (see below), whose sum is σ = 2498968368. Its totient is φ = 352418352.

The previous prime is 1105312513. The next prime is 1105312529. The reversal of 1105312518 is 8152135011.

1105312518 is a `hidden beast` number, since 110 + 5 + 31 + 2 + 518 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1105312491 and 1105312500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105312513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1334505 + ... + 1335332.

It is an arithmetic number, because the mean of its divisors is an integer number (104123682).

Almost surely, 2^1105312518 is an apocalyptic number.

1105312518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1105312518 is an abundant number, since it is smaller than the sum of its proper divisors (1393655850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105312518 is a wasteful number, since it uses less digits than its factorization.

1105312518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669868 (or 2669865 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 1105312518 is about 33246.2406596596. The cubic root of 1105312518 is about 1033.9392675340.

Adding to 1105312518 its reverse (8152135011), we get a palindrome (9257447529).

The spelling of 1105312518 in words is "one billion, one hundred five million, three hundred twelve thousand, five hundred eighteen".