1111123044401 has 4 divisors (see below), whose sum is σ = 1111127924772. Its totient is φ = 1111118164032.

The previous prime is 1111123044397. The next prime is 1111123044439. The reversal of 1111123044401 is 1044403211111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 259489378801 + 851633665600 = 509401^2 + 922840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111123044401 - 2² = 1111123044397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111123049401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081060 + ... + 2559893.

It is an arithmetic number, because the mean of its divisors is an integer number (277781981193).

Almost surely, 2^{1111123044401} is an apocalyptic number.

It is an amenable number.

1111123044401 is a deficient number, since it is larger than the sum of its proper divisors (4880371).

1111123044401 is an equidigital number, since it uses as much as digits as its factorization.

1111123044401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880370.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1111123044401 its reverse (1044403211111), we get a palindrome (2155526255512).

It can be divided in two parts, 111112 and 3044401, that added together give a palindrome (3155513).

The spelling of 1111123044401 in words is "one trillion, one hundred eleven billion, one hundred twenty-three million, forty-four thousand, four hundred one".