1100020200111 has 64 divisors (see below), whose sum is σ = 1900838400000. Its totient is φ = 628463652768.

The previous prime is 1100020200079. The next prime is 1100020200113. The reversal of 1100020200111 is 1110020200011.

It is a happy number.

It is not a de Polignac number, because 1100020200111 - 2⁵ = 1100020200079 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 = 1100020200093 and 1100020200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100020200113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77683450 + ... + 77697608.

It is an arithmetic number, because the mean of its divisors is an integer number (29700600000).

Almost surely, 2^{1100020200111} is an apocalyptic number.

1100020200111 is a deficient number, since it is larger than the sum of its proper divisors (800818199889).

1100020200111 is an equidigital number, since it uses as much as digits as its factorization.

1100020200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22578 (or 22558 counting only the distinct ones).

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

Adding to 1100020200111 its reverse (1110020200011), we get a palindrome (2210040400122).

The spelling of 1100020200111 in words is "one trillion, one hundred billion, twenty million, two hundred thousand, one hundred eleven".