1121041121 has 4 divisors (see below), whose sum is σ = 1121132544. Its totient is φ = 1120949700.

The previous prime is 1121041109. The next prime is 1121041157. The reversal of 1121041121 is 1211401211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1121041121 - 2¹⁸ = 1120778977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121041096 and 1121041105.

It is not an unprimeable number, because it can be changed into a prime (1121041171) 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, 23825 + ... + 53006.

It is an arithmetic number, because the mean of its divisors is an integer number (280283136).

Almost surely, 2^1121041121 is an apocalyptic number.

It is an amenable number.

1121041121 is a deficient number, since it is larger than the sum of its proper divisors (91423).

1121041121 is an equidigital number, since it uses as much as digits as its factorization.

1121041121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91422.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1121041121 is about 33481.9521682951. The cubic root of 1121041121 is about 1038.8205073001.

Adding to 1121041121 its reverse (1211401211), we get a palindrome (2332442332).

The spelling of 1121041121 in words is "one billion, one hundred twenty-one million, forty-one thousand, one hundred twenty-one".