1002110020011 has 6 divisors (see below), whose sum is σ = 1447492251140. Its totient is φ = 668073346668.

The previous prime is 1002110020001. The next prime is 1002110020039. The reversal of 1002110020011 is 1100200112001.

It is a happy number.

It is not a de Polignac number, because 1002110020011 - 2¹⁴ = 1002110003627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 111345557779 = 1002110020011 / (1 + 0 + 0 + 2 + 1 + 1 + 0 + 0 + 2 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002110019975 and 1002110020002.

It is not an unprimeable number, because it can be changed into a prime (1002110020001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55672778881 + ... + 55672778898.

Almost surely, 2^{1002110020011} is an apocalyptic number.

1002110020011 is a deficient number, since it is larger than the sum of its proper divisors (445382231129).

1002110020011 is a wasteful number, since it uses less digits than its factorization.

1002110020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111345557785 (or 111345557782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1002110020011 its reverse (1100200112001), we get a palindrome (2102310132012).

The spelling of 1002110020011 in words is "one trillion, two billion, one hundred ten million, twenty thousand, eleven".