1001020011018 has 16 divisors (see below), whose sum is σ = 2021862201696. Its totient is φ = 330369640400.

The previous prime is 1001020011011. The next prime is 1001020011073. The reversal of 1001020011018 is 8101100201001.

It is a junction number, because it is equal to n+sod(n) for n = 1001020010988 and 1001020011006.

It is not an unprimeable number, because it can be changed into a prime (1001020011011) 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, 825923496 + ... + 825924707.

It is an arithmetic number, because the mean of its divisors is an integer number (126366387606).

Almost surely, 2^{1001020011018} is an apocalyptic number.

1001020011018 is an abundant number, since it is smaller than the sum of its proper divisors (1020842190678).

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

1001020011018 is a wasteful number, since it uses less digits than its factorization.

1001020011018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651848309.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1001020011018 its reverse (8101100201001), we get a palindrome (9102120212019).

The spelling of 1001020011018 in words is "one trillion, one billion, twenty million, eleven thousand, eighteen".