1100002020111 has 24 divisors (see below), whose sum is σ = 1685312853120. Its totient is φ = 688984290816.

The previous prime is 1100002020109. The next prime is 1100002020127. The reversal of 1100002020111 is 1110202000011.

It is a happy number.

It is not a de Polignac number, because 1100002020111 - 2¹ = 1100002020109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1100002020093 and 1100002020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100002020191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6230655 + ... + 6404768.

It is an arithmetic number, because the mean of its divisors is an integer number (70221368880).

Almost surely, 2^{1100002020111} is an apocalyptic number.

1100002020111 is a deficient number, since it is larger than the sum of its proper divisors (585310833009).

1100002020111 is a wasteful number, since it uses less digits than its factorization.

1100002020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12636015 (or 12636012 counting only the distinct ones).

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

Adding to 1100002020111 its reverse (1110202000011), we get a palindrome (2210204020122).

The spelling of 1100002020111 in words is "one trillion, one hundred billion, two million, twenty thousand, one hundred eleven".