1101100021103 has 4 divisors (see below), whose sum is σ = 1148973935088. Its totient is φ = 1053226107120.

The previous prime is 1101100021093. The next prime is 1101100021127. The reversal of 1101100021103 is 3011200011011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1101100021103 - 2²⁰ = 1101098972527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101100021183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23936956958 + ... + 23936957003.

It is an arithmetic number, because the mean of its divisors is an integer number (287243483772).

Almost surely, 2^{1101100021103} is an apocalyptic number.

1101100021103 is a deficient number, since it is larger than the sum of its proper divisors (47873913985).

1101100021103 is an equidigital number, since it uses as much as digits as its factorization.

1101100021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47873913984.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1101100021103 its reverse (3011200011011), we get a palindrome (4112300032114).

The spelling of 1101100021103 in words is "one trillion, one hundred one billion, one hundred million, twenty-one thousand, one hundred three".