1104111121 has 4 divisors (see below), whose sum is σ = 1169058852. Its totient is φ = 1039163392.

The previous prime is 1104111091. The next prime is 1104111143. The reversal of 1104111121 is 1211114011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211114011 = 463 ⋅2615797.

It can be written as a sum of positive squares in 2 ways, for example, as 695060496 + 409050625 = 26364^2 + 20225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1104111121 - 2⁷ = 1104110993 is a prime.

It is a super-4 number, since 4×1104111121⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1104117121) 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, 32473840 + ... + 32473873.

It is an arithmetic number, because the mean of its divisors is an integer number (292264713).

Almost surely, 2^1104111121 is an apocalyptic number.

It is an amenable number.

1104111121 is a deficient number, since it is larger than the sum of its proper divisors (64947731).

1104111121 is an equidigital number, since it uses as much as digits as its factorization.

1104111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64947730.

The product of its (nonzero) digits is 8, while the sum is 13.

The square root of 1104111121 is about 33228.1675841446. The cubic root of 1104111121 is about 1033.5645252968.

Adding to 1104111121 its reverse (1211114011), we get a palindrome (2315225132).

It can be divided in two parts, 1104 and 111121, that added together give a square (112225 = 335²).

The spelling of 1104111121 in words is "one billion, one hundred four million, one hundred eleven thousand, one hundred twenty-one".