1011144451103 has 48 divisors (see below), whose sum is σ = 1115051664384. Its totient is φ = 916084162560.

The previous prime is 1011144451081. The next prime is 1011144451117. The reversal of 1011144451103 is 3011544411101.

It is not a de Polignac number, because 1011144451103 - 2²⁰ = 1011143402527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011144451403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 440201051 + ... + 440203347.

It is an arithmetic number, because the mean of its divisors is an integer number (23230243008).

Almost surely, 2^{1011144451103} is an apocalyptic number.

1011144451103 is a deficient number, since it is larger than the sum of its proper divisors (103907213281).

1011144451103 is a wasteful number, since it uses less digits than its factorization.

1011144451103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 1011144451103 its reverse (3011544411101), we get a palindrome (4022688862204).

The spelling of 1011144451103 in words is "one trillion, eleven billion, one hundred forty-four million, four hundred fifty-one thousand, one hundred three".