1001111000018 has 32 divisors (see below), whose sum is σ = 1616278872960. Its totient is φ = 463326716160.

The previous prime is 1001111000017. The next prime is 1001111000051. The reversal of 1001111000018 is 8100001111001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001110999966 and 1001111000011.

It is not an unprimeable number, because it can be changed into a prime (1001111000017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18180155 + ... + 18235137.

It is an arithmetic number, because the mean of its divisors is an integer number (50508714780).

Almost surely, 2^{1001111000018} is an apocalyptic number.

1001111000018 is a deficient number, since it is larger than the sum of its proper divisors (615167872942).

1001111000018 is a wasteful number, since it uses less digits than its factorization.

1001111000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63842.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1001111000018 its reverse (8100001111001), we get a palindrome (9101112111019).

The spelling of 1001111000018 in words is "one trillion, one billion, one hundred eleven million, eighteen", and thus it is an aban number.