1121201041 has 4 divisors (see below), whose sum is σ = 1132086592. Its totient is φ = 1110315492.

The previous prime is 1121201023. The next prime is 1121201057. The reversal of 1121201041 is 1401021211.

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 an emirpimes, since its reverse is a distinct semiprime: 1401021211 = 2699 ⋅519089.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121201041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121211041) 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, 5442621 + ... + 5442826.

It is an arithmetic number, because the mean of its divisors is an integer number (283021648).

Almost surely, 2^1121201041 is an apocalyptic number.

It is an amenable number.

1121201041 is a deficient number, since it is larger than the sum of its proper divisors (10885551).

1121201041 is a wasteful number, since it uses less digits than its factorization.

1121201041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10885550.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1121201041 is about 33484.3402353996. The cubic root of 1121201041 is about 1038.8699019427.

Adding to 1121201041 its reverse (1401021211), we get a palindrome (2522222252).

The spelling of 1121201041 in words is "one billion, one hundred twenty-one million, two hundred one thousand, forty-one".